Soal Logaritma dan Eksponen Pembahasan UN Matematika XII SMA/SMK/MA TA 2015/2016

<p><div style="text-align: justify;"> <b><span style="background-color: white; font-family: inherit;">Soal Logaritma dan Eksponen Pembahasan UN Matematika XII SMA/SMK/MA TA 2015/2016</span></b></div> <div style="text-align: justify;"> <span style="background-color: white; font-family: inherit;"><br /></span></div> <div style="text-align: justify;"> <span style="background-color: white; font-family: inherit;"><br /></span></div> <ol style="border: 0px; line-height: 19.5px; margin: 0px 0px 1.5em 3em; outline: 0px; padding: 0px; vertical-align: baseline;"> <li style="border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><div style="border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">Bentuk sederhana dari (1 + 3<img alt="\sqrt{2}" class="latex" src="https://s0.wp.com/latex.php?latex=%5Csqrt%7B2%7D&bg=ffffff&fg=666666&s=0" style="border: none; max-width: 100%; vertical-align: middle;" title="\sqrt{2}" />) – (4 – <img alt="\sqrt{50}" class="latex" src="https://s0.wp.com/latex.php?latex=%5Csqrt%7B50%7D&bg=ffffff&fg=666666&s=0" style="border: none; max-width: 100%; vertical-align: middle;" title="\sqrt{50}" />) adalah …</span></span><div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> </div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">A. -2<img alt="\sqrt{2}" class="latex" src="https://s0.wp.com/latex.php?latex=%5Csqrt%7B2%7D&bg=ffffff&fg=666666&s=0" style="border: none; max-width: 100%; vertical-align: middle;" title="\sqrt{2}" /> – 3</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">B. -2<img alt="\sqrt{2}" class="latex" src="https://s0.wp.com/latex.php?latex=%5Csqrt%7B2%7D&bg=ffffff&fg=666666&s=0" style="border: none; max-width: 100%; vertical-align: middle;" title="\sqrt{2}" /></span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">C. 8<img alt="\sqrt{2}" class="latex" src="https://s0.wp.com/latex.php?latex=%5Csqrt%7B2%7D&bg=ffffff&fg=666666&s=0" style="border: none; max-width: 100%; vertical-align: middle;" title="\sqrt{2}" /> – 3</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">D. 8<img alt="\sqrt{2}" class="latex" src="https://s0.wp.com/latex.php?latex=%5Csqrt%7B2%7D&bg=ffffff&fg=666666&s=0" style="border: none; max-width: 100%; vertical-align: middle;" title="\sqrt{2}" /> + 3</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">E. 8<img alt="\sqrt{2}" class="latex" src="https://s0.wp.com/latex.php?latex=%5Csqrt%7B2%7D&bg=ffffff&fg=666666&s=0" style="border: none; max-width: 100%; vertical-align: middle;" title="\sqrt{2}" /> + 5</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><strong style="border: 0px; font-style: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">PEMBAHASAN :<span id="more-2458" style="border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"></span></span></strong></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">(1 + 3<img alt="\sqrt{2}" class="latex" src="https://s0.wp.com/latex.php?latex=%5Csqrt%7B2%7D&bg=ffffff&fg=666666&s=0" style="border: none; max-width: 100%; vertical-align: middle;" title="\sqrt{2}" />) – (4 – <img alt="\sqrt{50}" class="latex" src="https://s0.wp.com/latex.php?latex=%5Csqrt%7B50%7D&bg=ffffff&fg=666666&s=0" style="border: none; max-width: 100%; vertical-align: middle;" title="\sqrt{50}" />) = (1 + 3<img alt="\sqrt{2}" class="latex" src="https://s0.wp.com/latex.php?latex=%5Csqrt%7B2%7D&bg=ffffff&fg=666666&s=0" style="border: none; max-width: 100%; vertical-align: middle;" title="\sqrt{2}" />) – (4 – <img alt="\sqrt{2.25}" class="latex" src="https://s0.wp.com/latex.php?latex=%5Csqrt%7B2.25%7D&bg=ffffff&fg=666666&s=0" style="border: none; max-width: 100%; vertical-align: middle;" title="\sqrt{2.25}" />)</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">                       = (1 + 3<img alt="\sqrt{2}" class="latex" src="https://s0.wp.com/latex.php?latex=%5Csqrt%7B2%7D&bg=ffffff&fg=666666&s=0" style="border: none; max-width: 100%; vertical-align: middle;" title="\sqrt{2}" />) – (4 – <img alt="5\sqrt{2}" class="latex" src="https://s0.wp.com/latex.php?latex=5%5Csqrt%7B2%7D&bg=ffffff&fg=666666&s=0" style="border: none; max-width: 100%; vertical-align: middle;" title="5\sqrt{2}" />)</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">                       = 1 + 3<img alt="\sqrt{2}" class="latex" src="https://s0.wp.com/latex.php?latex=%5Csqrt%7B2%7D&bg=ffffff&fg=666666&s=0" style="border: none; max-width: 100%; vertical-align: middle;" title="\sqrt{2}" /> – 4 + <img alt="5\sqrt{2}" class="latex" src="https://s0.wp.com/latex.php?latex=5%5Csqrt%7B2%7D&bg=ffffff&fg=666666&s=0" style="border: none; max-width: 100%; vertical-align: middle;" title="5\sqrt{2}" /></span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">                       = -3 + 8<img alt="\sqrt{2}" class="latex" src="https://s0.wp.com/latex.php?latex=%5Csqrt%7B2%7D&bg=ffffff&fg=666666&s=0" style="border: none; max-width: 100%; vertical-align: middle;" title="\sqrt{2}" /> = 8<img alt="\sqrt{2}" class="latex" src="https://s0.wp.com/latex.php?latex=%5Csqrt%7B2%7D&bg=ffffff&fg=666666&s=0" style="border: none; max-width: 100%; vertical-align: middle;" title="\sqrt{2}" /> – 3</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><strong style="border: 0px; font-style: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">JAWABAN : C</span></strong></span></div> </div> </li> <li style="border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><div style="border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">Jika <span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2</span>log 3 = a dan <span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">3</span>log 5 = b, maka <span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">15</span>log 20 = …</span></span><div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> </div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">A. <img alt="\frac{2}{a} " class="latex" src="https://s0.wp.com/latex.php?latex=%5Cfrac%7B2%7D%7Ba%7D+&bg=ffffff&fg=666666&s=2" style="border: none; max-width: 100%; vertical-align: middle;" title="\frac{2}{a} " /></span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">B. <img alt="\frac{2+ab}{a(1+b)} " class="latex" src="https://s0.wp.com/latex.php?latex=%5Cfrac%7B2%2Bab%7D%7Ba%281%2Bb%29%7D+&bg=ffffff&fg=666666&s=2" style="border: none; max-width: 100%; vertical-align: middle;" title="\frac{2+ab}{a(1+b)} " /></span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">C. <img alt="\frac{a}{2} " class="latex" src="https://s0.wp.com/latex.php?latex=%5Cfrac%7Ba%7D%7B2%7D+&bg=ffffff&fg=666666&s=2" style="border: none; max-width: 100%; vertical-align: middle;" title="\frac{a}{2} " /></span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">D. <img alt="\frac{b+1}{2ab+1} " class="latex" src="https://s0.wp.com/latex.php?latex=%5Cfrac%7Bb%2B1%7D%7B2ab%2B1%7D+&bg=ffffff&fg=666666&s=2" style="border: none; max-width: 100%; vertical-align: middle;" title="\frac{b+1}{2ab+1} " /></span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">E. <img alt="\frac{a(1+b)}{2+ab} " class="latex" src="https://s0.wp.com/latex.php?latex=%5Cfrac%7Ba%281%2Bb%29%7D%7B2%2Bab%7D+&bg=ffffff&fg=666666&s=2" style="border: none; max-width: 100%; vertical-align: middle;" title="\frac{a(1+b)}{2+ab} " /></span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><strong style="border: 0px; font-style: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">PEMBAHASAN :</span></strong></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;"><span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">15</span>log 20 = <img alt="\frac{log 20}{log 15} " class="latex" src="https://s0.wp.com/latex.php?latex=%5Cfrac%7Blog+20%7D%7Blog+15%7D+&bg=ffffff&fg=666666&s=2" style="border: none; max-width: 100%; vertical-align: middle;" title="\frac{log 20}{log 15} " /></span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">        = <img alt="\frac{log (2^2.5)}{log (3.5)} " class="latex" src="https://s0.wp.com/latex.php?latex=%5Cfrac%7Blog+%282%5E2.5%29%7D%7Blog+%283.5%29%7D+&bg=ffffff&fg=666666&s=2" style="border: none; max-width: 100%; vertical-align: middle;" title="\frac{log (2^2.5)}{log (3.5)} " /></span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">        = <img alt="\frac{log 2^2 + log 5}{log 3 + log 5)} " class="latex" src="https://s0.wp.com/latex.php?latex=%5Cfrac%7Blog+2%5E2+%2B+log+5%7D%7Blog+3+%2B+log+5%29%7D+&bg=ffffff&fg=666666&s=2" style="border: none; max-width: 100%; vertical-align: middle;" title="\frac{log 2^2 + log 5}{log 3 + log 5)} " /></span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">        = <img alt="\frac{^3log 2^2 + ^3log 5}{^3log 3 + ^3log 5)} " class="latex" src="https://s0.wp.com/latex.php?latex=%5Cfrac%7B%5E3log+2%5E2+%2B+%5E3log+5%7D%7B%5E3log+3+%2B+%5E3log+5%29%7D+&bg=ffffff&fg=666666&s=2" style="border: none; max-width: 100%; vertical-align: middle;" title="\frac{^3log 2^2 + ^3log 5}{^3log 3 + ^3log 5)} " /></span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">        = <img alt="\frac{2.^3log 2 + ^3log 5}{^3log 3 + ^3log 5)} " class="latex" src="https://s0.wp.com/latex.php?latex=%5Cfrac%7B2.%5E3log+2+%2B+%5E3log+5%7D%7B%5E3log+3+%2B+%5E3log+5%29%7D+&bg=ffffff&fg=666666&s=2" style="border: none; max-width: 100%; vertical-align: middle;" title="\frac{2.^3log 2 + ^3log 5}{^3log 3 + ^3log 5)} " /></span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">        = <img alt="\frac{2.(1/a) + b}{1 + b} " class="latex" src="https://s0.wp.com/latex.php?latex=%5Cfrac%7B2.%281%2Fa%29+%2B+b%7D%7B1+%2B+b%7D+&bg=ffffff&fg=666666&s=2" style="border: none; max-width: 100%; vertical-align: middle;" title="\frac{2.(1/a) + b}{1 + b} " /></span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">        = <img alt="\frac{\frac{2 + ab}{a}}{1 + b} " class="latex" src="https://s0.wp.com/latex.php?latex=%5Cfrac%7B%5Cfrac%7B2+%2B+ab%7D%7Ba%7D%7D%7B1+%2B+b%7D+&bg=ffffff&fg=666666&s=2" style="border: none; max-width: 100%; vertical-align: middle;" title="\frac{\frac{2 + ab}{a}}{1 + b} " /></span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">        = <img alt="\frac{2 + ab}{a(1 + b)} " class="latex" src="https://s0.wp.com/latex.php?latex=%5Cfrac%7B2+%2B+ab%7D%7Ba%281+%2B+b%29%7D+&bg=ffffff&fg=666666&s=2" style="border: none; max-width: 100%; vertical-align: middle;" title="\frac{2 + ab}{a(1 + b)} " /></span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><strong style="border: 0px; font-style: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">JAWABAN : B</span></strong></span></div> </div> </li> <li style="border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><div style="border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">Nilai dari <span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">r</span>log <img alt="\frac{1}{p^5} " class="latex" src="https://s0.wp.com/latex.php?latex=%5Cfrac%7B1%7D%7Bp%5E5%7D+&bg=ffffff&fg=666666&s=2" style="border: none; max-width: 100%; vertical-align: middle;" title="\frac{1}{p^5} " />.<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;"> q</span>log <img alt="\frac{1}{r^3} " class="latex" src="https://s0.wp.com/latex.php?latex=%5Cfrac%7B1%7D%7Br%5E3%7D+&bg=ffffff&fg=666666&s=2" style="border: none; max-width: 100%; vertical-align: middle;" title="\frac{1}{r^3} " />.<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;"> p</span>log <img alt="\frac{1}{p} " class="latex" src="https://s0.wp.com/latex.php?latex=%5Cfrac%7B1%7D%7Bp%7D+&bg=ffffff&fg=666666&s=2" style="border: none; max-width: 100%; vertical-align: middle;" title="\frac{1}{p} " /> = …</span></span><div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> </div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">A. -15</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">B. -5</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">C. -3</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">D. 1/15</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">E. 5</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><strong style="border: 0px; font-style: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">PEMBAHASAN :</span></strong></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;"><span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">r</span>log <img alt="\frac{1}{p^5} " class="latex" src="https://s0.wp.com/latex.php?latex=%5Cfrac%7B1%7D%7Bp%5E5%7D+&bg=ffffff&fg=666666&s=2" style="border: none; max-width: 100%; vertical-align: middle;" title="\frac{1}{p^5} " />.<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;"> q</span>log <img alt="\frac{1}{r^3} " class="latex" src="https://s0.wp.com/latex.php?latex=%5Cfrac%7B1%7D%7Br%5E3%7D+&bg=ffffff&fg=666666&s=2" style="border: none; max-width: 100%; vertical-align: middle;" title="\frac{1}{r^3} " />.<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;"> p</span>log <img alt="\frac{1}{p} " class="latex" src="https://s0.wp.com/latex.php?latex=%5Cfrac%7B1%7D%7Bp%7D+&bg=ffffff&fg=666666&s=2" style="border: none; max-width: 100%; vertical-align: middle;" title="\frac{1}{p} " /> = <span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">r</span>log p<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">-5</span>. <span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">p</span>log q<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">-1</span>.<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;"> q</span>log r<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">-3</span></span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">                       = (-5)<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">r</span>log p . (-1)<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">p</span>log q .(-3)<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;"> q</span>log r</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">                       = (-5)(-1)(-3) = -15</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><strong style="border: 0px; font-style: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">JAWABAN : A</span></strong></span></div> </div> </li> <li style="border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><div style="border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">Akar – akar persamaan 3<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2x+1</span> – 28.3<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">x</span> + 9 = 0 adalah x<span style="border: 0px; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; top: 0.5ex; vertical-align: baseline;">1</span> dan x<span style="border: 0px; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; top: 0.5ex; vertical-align: baseline;">2</span>. Jika x<span style="border: 0px; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; top: 0.5ex; vertical-align: baseline;">1</span> > x<span style="border: 0px; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; top: 0.5ex; vertical-align: baseline;">2</span>, maka nilai 3x<span style="border: 0px; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; top: 0.5ex; vertical-align: baseline;">1</span> – x<span style="border: 0px; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; top: 0.5ex; vertical-align: baseline;">2</span> = …</span></span><div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> </div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">A. -5</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">B. -1</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">C. 4</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">D. 5</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">E. 7</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><strong style="border: 0px; font-style: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">PEMBAHASAN :</span></strong></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">3<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2x+1</span> – 28.3<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">x</span> + 9 = 0</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">3.3<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2x</span> – 28.3<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">x</span> + 9 = 0</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">misal : y = 3<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">x</span></span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">3y – 28y + 9 = 0</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">(3y-1)(y-9) = 0</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">y = 1/3 atau y = 9</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">1/3 = 3<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">x</span>     atau     9 = 3<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">x</span></span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">3<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">-1</span> = 3<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">x</span>              3<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2</span> = 3<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">x</span></span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">-1 = x<span style="border: 0px; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; top: 0.5ex; vertical-align: baseline;">2</span>               2 = x<span style="border: 0px; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; top: 0.5ex; vertical-align: baseline;">1</span></span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">3x<span style="border: 0px; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; top: 0.5ex; vertical-align: baseline;">1</span> – x<span style="border: 0px; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; top: 0.5ex; vertical-align: baseline;">2</span> = 3(2) – (-1)</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">        = 7</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;"><strong style="border: 0px; font-style: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">JAWABAN : E</strong></span></span></div> </div> </li> <li style="border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><div style="border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">Akar – akar persamaan 2.3<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">4x</span> – 20.3<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2x</span> + 18 = 0 adalah x<span style="border: 0px; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; top: 0.5ex; vertical-align: baseline;">1</span> dan x<span style="border: 0px; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; top: 0.5ex; vertical-align: baseline;">2</span>. Nilai x<span style="border: 0px; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; top: 0.5ex; vertical-align: baseline;">1</span> + x<span style="border: 0px; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; top: 0.5ex; vertical-align: baseline;">2</span> = …</span></span><div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> </div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">A. 0</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">B. 1</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">C. 2</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">D. 3</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">E. 4</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><strong style="border: 0px; font-style: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">PEMBAHASAN :</span></strong></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">2.3<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">4x</span> – 20.3<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2x</span> + 18 = 0</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">Misal : 3<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2x </span>= y</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">2y<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2</span> – 20y + 18 = 0</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">2(y<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2</span> – 10y + 9) = 0</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">(y – 9)(y – 1) = 0</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">y = 9 atau y = 1</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">9 = 3<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2x</span> atau 1 = 3<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2x</span></span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">3<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2</span> = 3<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2x</span>     3<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">0</span> = 3<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2x</span></span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;"> 1 = x<span style="border: 0px; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; top: 0.5ex; vertical-align: baseline;">1</span>      0 = x<span style="border: 0px; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; top: 0.5ex; vertical-align: baseline;">2</span></span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">x<span style="border: 0px; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; top: 0.5ex; vertical-align: baseline;">1</span> + x<span style="border: 0px; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; top: 0.5ex; vertical-align: baseline;">2</span> = 1 + 0</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">       = 1</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;"><strong style="border: 0px; font-style: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">JAWABAN : B</strong></span></span></div> </div> </li> <li style="border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><div style="border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">Nilai x yang memenuhi persamaan <span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2</span>log.<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2</span>log (2<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">x+1</span> + 3) = 1 + <span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2</span>log x adalah …</span></span><div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> </div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">A. <span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2</span>log 3</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">B. <span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">3</span>log 2</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">C. -1 atau 3</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">D. 8 atau ½</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">E. log <img alt="\frac{2}{3}" class="latex" src="https://s0.wp.com/latex.php?latex=%5Cfrac%7B2%7D%7B3%7D&bg=ffffff&fg=666666&s=0" style="border: none; max-width: 100%; vertical-align: middle;" title="\frac{2}{3}" /></span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><strong style="border: 0px; font-style: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">PEMBAHASAN :</span></strong></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;"><span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2</span>log.<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2</span>log (2<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">x+1</span> + 3) = 1 + <span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2</span>log x</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;"><span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2</span>log.<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2</span>log (2<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">x+1</span> + 3) = <span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2</span>log 2 + <span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2</span>log x</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;"><span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2</span>log.<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2</span>log (2<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">x+1</span> + 3) = <span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2</span>log 2x</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;"><span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2</span>log (2<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">x+1</span> + 3) = 2x</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">2<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">x+1</span> + 3 = 2<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2x</span></span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">2<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2x</span> – 2<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">x+1</span> – 3 = 0</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">2<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2x</span> – 2.2<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">x</span> – 3 = 0</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">misal : y = 2<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">x</span><span style="border: 0px; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; top: 0.5ex; vertical-align: baseline;"><br /></span></span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">y<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2</span> – 2y – 3 = 0</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">(y – 3)(y + 1) = 0</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">y = 3 atau y = -1</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">3 = 2<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">x</span></span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">log 3 = log 2<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">x</span></span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">log 3 = x log 2</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;"><span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2</span>log 3 = x</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">Untuk “-1 = 2<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">x </span>” tidak ada solusi karena tidak ada bilangan positif yang dipangkatkan akan menghasilkan bilangan negatif</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;"><strong style="border: 0px; font-style: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">JAWABAN : A</strong></span></span></div> </div> </li> <li style="border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><div style="border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">Penyelesaian pertidaksamaan log (x – 4) + log (x + 8) < log (2x + 16) adalah …</span></span><div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> </div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">A. x > 6</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">B. x > 8</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">C. 4 < x < 6</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">D. -8 < x < 8</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">E. 6 < x < 8</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><strong style="border: 0px; font-style: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">PEMBAHASAN :</span></strong></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">log (x – 4) + log (x + 8) < log (2x + 16)</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">log [(x – 4)(x + 8)] < log (2x + 16)</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">log (x<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2</span> + 4x – 32) < log (2x + 16)</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">x<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2</span> + 4x – 32 < 2x + 16</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">x<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2</span> + 2x – 48 < 0</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">(x + 8)(x – 6) = 0</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">x = -8 atau x = 6</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">dengan menggunakan garis bilangan maka akan diperoleh : -8 < x < 6</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">syrat-syarat :</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">1. untuk “log (x – 4)” (x – 4) > 0, maka x > 4</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">2. untuk “log (x + 8)” (x + 8) > 0, maka x > -8</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">3. untuk “log (2x + 16)” (2x + 16) > 0, maka x > -8</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">Dari ketiga syarat tersebut dan -8 < x < 6, dengan menggunakan garis bilangan, maka yang memenuhi untuk ke semuanya adalah : 4 < x < 6</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;"><strong style="border: 0px; font-style: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">JAWABAN : C</strong></span></span></div> </div> </li> <li style="border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><div style="border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">Nilai x yang memenuhi pertidaksamaan : 2 log x <img alt="\leq" class="latex" src="https://s0.wp.com/latex.php?latex=%5Cleq&bg=ffffff&fg=666666&s=0" style="border: none; max-width: 100%; vertical-align: middle;" title="\leq" /> log (2x + 5) + 2 log 2 adalah …</span></span><div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> </div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">A. -5/2 < x <img alt="\leq" class="latex" src="https://s0.wp.com/latex.php?latex=%5Cleq&bg=ffffff&fg=666666&s=0" style="border: none; max-width: 100%; vertical-align: middle;" title="\leq" /> 8</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">B. -2 <img alt="\leq" class="latex" src="https://s0.wp.com/latex.php?latex=%5Cleq&bg=ffffff&fg=666666&s=0" style="border: none; max-width: 100%; vertical-align: middle;" title="\leq" /> x <img alt="\leq" class="latex" src="https://s0.wp.com/latex.php?latex=%5Cleq&bg=ffffff&fg=666666&s=0" style="border: none; max-width: 100%; vertical-align: middle;" title="\leq" /> 10</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">C. 0 < x <img alt="\leq" class="latex" src="https://s0.wp.com/latex.php?latex=%5Cleq&bg=ffffff&fg=666666&s=0" style="border: none; max-width: 100%; vertical-align: middle;" title="\leq" /> 10</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">D. -2 < x < 0</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">E. -5/2 <img alt="\leq" class="latex" src="https://s0.wp.com/latex.php?latex=%5Cleq&bg=ffffff&fg=666666&s=0" style="border: none; max-width: 100%; vertical-align: middle;" title="\leq" /> x < 0</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><strong style="border: 0px; font-style: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">PEMBAHASAN :</span></strong></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">2 log x <img alt="\leq" class="latex" src="https://s0.wp.com/latex.php?latex=%5Cleq&bg=ffffff&fg=666666&s=0" style="border: none; max-width: 100%; vertical-align: middle;" title="\leq" /> log (2x + 5) + 2 log 2</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;"> log x<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2</span> <img alt="\leq" class="latex" src="https://s0.wp.com/latex.php?latex=%5Cleq&bg=ffffff&fg=666666&s=0" style="border: none; max-width: 100%; vertical-align: middle;" title="\leq" /> log (2x + 5) + log 2<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2</span></span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;"> log x<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2</span> <img alt="\leq" class="latex" src="https://s0.wp.com/latex.php?latex=%5Cleq&bg=ffffff&fg=666666&s=0" style="border: none; max-width: 100%; vertical-align: middle;" title="\leq" /> log [(2x + 5)2<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2</span>]</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">    x<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2</span> <img alt="\leq" class="latex" src="https://s0.wp.com/latex.php?latex=%5Cleq&bg=ffffff&fg=666666&s=0" style="border: none; max-width: 100%; vertical-align: middle;" title="\leq" /> 8x + 20</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">x<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2</span> – 8x – 20 <img alt="\leq" class="latex" src="https://s0.wp.com/latex.php?latex=%5Cleq&bg=ffffff&fg=666666&s=0" style="border: none; max-width: 100%; vertical-align: middle;" title="\leq" /> 0</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">(x – 10)(x + 2) = 0</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">x = 10 atau x = -2</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">dengan menggunakan garis bilangan, maka diperoleh x yang memenuhi adalah : -2 <img alt="\leq" class="latex" src="https://s0.wp.com/latex.php?latex=%5Cleq&bg=ffffff&fg=666666&s=0" style="border: none; max-width: 100%; vertical-align: middle;" title="\leq" /> x <img alt="\leq" class="latex" src="https://s0.wp.com/latex.php?latex=%5Cleq&bg=ffffff&fg=666666&s=0" style="border: none; max-width: 100%; vertical-align: middle;" title="\leq" /> 10</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">syarat :</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">1. untuk “log x<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2</span>“, x<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2</span> > 0 maka x > 0</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">2. untuk “log (2x + 5)”, x > -2/5</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">Dari ketiga syarat tersebut dan -2 <img alt="\leq" class="latex" src="https://s0.wp.com/latex.php?latex=%5Cleq&bg=ffffff&fg=666666&s=0" style="border: none; max-width: 100%; vertical-align: middle;" title="\leq" /> x <img alt="\leq" class="latex" src="https://s0.wp.com/latex.php?latex=%5Cleq&bg=ffffff&fg=666666&s=0" style="border: none; max-width: 100%; vertical-align: middle;" title="\leq" /> 10, dengan menggunakan garis bilangan, maka yang memenuhi untuk ke semuanya adalah : 0 < x <img alt="\leq" class="latex" src="https://s0.wp.com/latex.php?latex=%5Cleq&bg=ffffff&fg=666666&s=0" style="border: none; max-width: 100%; vertical-align: middle;" title="\leq" /> 10</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;"><strong style="border: 0px; font-style: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">JAWABAN : C</strong></span></span></div> </div> </li> <li style="border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><div style="border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">Himpunan penyelesaian persamaan 2.9<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">x</span> – 3<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">x+1</span> + 1 = 0 adalah …</span></span><div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> </div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">A. {1/2, 1}</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">B. {-1/2, 1}</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">C. {-1/2, 1}</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">D. {0, <span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">3</span>log ½}</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">E. {1/2, <span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">1/2</span>log 3}</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><strong style="border: 0px; font-style: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">PEMBAHASAN :</span></strong></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">2.9<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">x</span> – 3<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">x+1</span> + 1 = 0</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">2.3<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2x</span> – 3.3<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">x</span> + 1 = 0</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">misal : y = 3<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">x</span></span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">2y<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">2</span> – 3y + 1 = 0</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">(2y – 1)(y – 1) = 0</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">y = ½ atau y = 1</span></span></div> <div class="separator" style="clear: both; text-align: center;"> <span style="font-family: inherit;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi_LKZ1UZw_cQFYd8d8k3v_q4GJzAC5SJy6WxlGSHIcvvLs4F58EbbwujYlTcDC8MaqJQOtnoNKO1ugq-4r30KiychhY0MyztFAm5JiyY6AsiKKyeXBpf-6Fo2b4NCNGjdTR0B_1M_02ds/s1600/Cara+Mudah+Cek+SK+Inspassing+Guru+Non+PNS+Tahun+2016.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi_LKZ1UZw_cQFYd8d8k3v_q4GJzAC5SJy6WxlGSHIcvvLs4F58EbbwujYlTcDC8MaqJQOtnoNKO1ugq-4r30KiychhY0MyztFAm5JiyY6AsiKKyeXBpf-6Fo2b4NCNGjdTR0B_1M_02ds/s1600/Cara+Mudah+Cek+SK+Inspassing+Guru+Non+PNS+Tahun+2016.png" /></a></span></div> <span style="font-family: inherit;"><br /></span></div> </li> </ol> <div style="border: 0px; line-height: 19.5px; margin: 0px 0px 0px 18pt; outline: 0px; padding: 0px; vertical-align: baseline;"> <table border="0" style="border-collapse: collapse; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border-spacing: 0px; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px 0px 1.5em; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline; width: 599px;"><colgroup><col style="width: 174px;"></col><col style="width: 138px;"></col></colgroup><tbody style="border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;" valign="top"> <tr style="border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><td style="border: 0.5pt solid; font-style: inherit; margin: 0px; outline: 0px; padding: 0px 7px; vertical-align: baseline;"><div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">1/2 = 3<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">x</span></span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">log (1/2) = log 3<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">x</span></span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">log (1/2) = x log 3</span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;"><span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">3</span>log (1/2) = x<span style="border: 0px; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; top: 0.5ex; vertical-align: baseline;">1</span></span></span></div> </td><td style="border-bottom-width: 0.5pt; border-color: initial; border-right-width: 0.5pt; border-style: solid solid solid none; border-top-width: 0.5pt; font-style: inherit; margin: 0px; outline: 0px; padding: 0px 7px; vertical-align: baseline;"><div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">1 = 3<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">x</span></span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">3<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">0</span> = 3<span style="border: 0px; bottom: 1ex; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline;">x</span></span></span></div> <div style="border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline;"> <span style="background-color: white; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">0 = x<span style="border: 0px; font-style: inherit; font-weight: inherit; height: 0px; line-height: 0; margin: 0px; outline: 0px; padding: 0px; position: relative; top: 0.5ex; vertical-align: baseline;">2</span></span></span></div> </td></tr> </tbody></table> <div style="border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border: 0px; font-style: inherit; font-weight: inherit; margin-bottom: 1.5em; margin-left: 18pt; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline;"> <span style="background-color: white; border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border: 0px; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><strong style="border-image-outset: initial; border-image-repeat: initial; border-image-slice: initial; border-image-source: initial; border-image-width: initial; border: 0px; font-style: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span style="font-family: inherit;">JAWABAN : D</span></strong></span></div> </div> </p>

Soal Logaritma dan Eksponen Pembahasan UN Matematika XII SMA/SMK/MA TA 2015/2016 Bentuk sederhana dari (1 + 3 ) – (4 –  ) adalah … ...