Roboguru

Jika , maka nilai

Pertanyaan

Jika begin mathsize 14px style fraction numerator 9 a to the power of negative 1 end exponent minus a over denominator 1 plus 3 a to the power of negative 1 end exponent end fraction equals 10 end style, maka nilai begin mathsize 14px style a equals.... end style  

  1. begin mathsize 14px style 7 end style 

  2. begin mathsize 14px style 1 over 7 end style 

  3. begin mathsize 14px style negative 1 end style 

  4. begin mathsize 14px style negative 7 end style 

Pembahasan Soal:

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

undefined atau table attributes columnalign right center left columnspacing 0px end attributes row cell size 14px a size 14px plus size 14px 3 end cell size 14px equals size 14px 0 row size 14px a size 14px equals cell size 14px minus size 14px 3 end cell end table

Jadi, jawaban yang tepat adalah D.

Pembahasan terverifikasi oleh Roboguru

Terakhir diupdate 18 Juli 2021

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