Pertanyaan

Jika 2 x = 2 − 3 , maka 2 + 3 lo g 4 x = ....

Jika $2^{x} = 2 - 3$ , maka $_{2 + 3} lo g 4^{x} = ....$

-2
1
2

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M. Robo

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$begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell 2 to the power of x end cell equals cell left parenthesis 2 minus square root of 3 right parenthesis left parenthesis fraction numerator 2 plus square root of 3 over denominator 2 plus square root of 3 end fraction right parenthesis end cell row cell 2 to the power of x end cell equals cell fraction numerator 4 minus 3 over denominator 2 plus square root of 3 end fraction end cell row cell 2 to the power of x end cell equals cell fraction numerator 1 over denominator 2 plus square root of 3 end fraction end cell row cell 2 plus square root of 3 end cell equals cell 1 over 2 to the power of x equals 2 to the power of negative x end exponent end cell end table end style$

Maka

$begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell log presubscript blank presuperscript 2 plus square root of 3 end presuperscript invisible function application 4 to the power of x end cell equals cell log presubscript blank presuperscript 2 to the power of negative x end exponent end presuperscript invisible function application 4 to the power of x end cell row cell log presubscript blank presuperscript 2 to the power of negative x end exponent end presuperscript invisible function application 2 to the power of 2 x end exponent end cell equals cell fraction numerator 2 x over denominator negative x end fraction log presubscript blank presuperscript 2 invisible function application 2 equals negative 2 end cell end table end style$