Pertanyaan

Jika 1 + 3 a − 1 9 a − 1 − a = 10 , maka nilai a = ....

Jika $\frac{9 a ^{- 1} - a}{1 + 3 a ^{- 1}} = 10$ , maka nilai $a = ....$

N. Puspita

Master Teacher

Jawaban terverifikasi

Jawaban

jawaban yang tepat adalah D.

Pembahasan

Jadi pembuat nolnya yaitu atau Jadi, jawaban yang tepat adalah D.

$table attributes columnalign right center left columnspacing 0px end attributes row cell fraction numerator size 14px 9 size 14px a to the power of size 14px minus size 14px 1 end exponent size 14px minus size 14px a over denominator size 14px 1 size 14px plus size 14px 3 size 14px a to the power of size 14px minus size 14px 1 end exponent end fraction end cell size 14px equals size 14px 10 row cell fraction numerator begin display style size 14px 9 over size 14px a end style size 14px minus size 14px a over denominator size 14px 1 size 14px plus begin display style size 14px 3 over size 14px a end style end fraction size 14px cross times size 14px a over size 14px a end cell size 14px equals size 14px 10 row cell fraction numerator size 14px 9 size 14px minus size 14px a to the power of size 14px 2 over denominator size 14px a size 14px plus size 14px 3 end fraction end cell size 14px equals size 14px 10 row cell size 14px 9 size 14px minus size 14px a to the power of size 14px 2 end cell size 14px equals cell size 14px 10 begin mathsize 14px style left parenthesis a plus 3 right parenthesis end style end cell row cell size 14px 9 size 14px minus size 14px a to the power of size 14px 2 end cell size 14px equals cell size 14px 10 size 14px a size 14px plus size 14px 30 end cell row size 14px 0 size 14px equals cell size 14px a to the power of size 14px 2 size 14px plus size 14px 10 size 14px a size 14px plus size 14px 27 end cell row size 14px 0 size 14px equals cell begin mathsize 14px style left parenthesis a plus 7 right parenthesis end style begin mathsize 14px style left parenthesis a plus 3 right parenthesis end style end cell end table$

Jadi pembuat nolnya yaitu

atau

Jadi, jawaban yang tepat adalah D.