Roboguru

Bentuk sederhana dari  adalah ....

Pertanyaan

Bentuk sederhana dari begin mathsize 14px style open parentheses a squared b to the power of negative 2 end exponent c cubed close parentheses to the power of negative 2 end exponent open parentheses a b cubed c to the power of negative 2 end exponent close parentheses to the power of negative 3 end exponent end style adalah ....

  1. begin mathsize 14px style a c end style 

  2. begin mathsize 14px style fraction numerator 1 over denominator a to the power of 7 b to the power of 5 end fraction end style 

  3. begin mathsize 14px style open parentheses a over c close parentheses cubed end style 

  4. begin mathsize 14px style open parentheses a squared over c close parentheses cubed end style 

  5. begin mathsize 14px style open parentheses b over c squared close parentheses cubed end style 

Pembahasan Soal:

begin mathsize 14px style table attributes columnalign right center left columnspacing 2px end attributes row cell left parenthesis straight a squared straight b to the power of negative 2 end exponent straight c cubed right parenthesis to the power of negative 2 end exponent left parenthesis ab cubed straight c to the power of negative 2 end exponent right parenthesis to the power of negative 3 end exponent end cell equals cell open parentheses straight a to the power of 2 open parentheses negative 2 close parentheses end exponent straight b to the power of negative 2 open parentheses negative 2 close parentheses end exponent straight c to the power of 3 open parentheses negative 2 close parentheses end exponent close parentheses open parentheses straight a to the power of negative 3 end exponent straight b to the power of 3 open parentheses negative 3 close parentheses end exponent straight c to the power of negative 2 open parentheses negative 3 close parentheses end exponent close parentheses end cell row blank equals cell open parentheses straight a to the power of negative 4 end exponent straight b to the power of 4 straight c to the power of negative 6 end exponent close parentheses open parentheses straight a to the power of negative 3 end exponent straight b to the power of negative 9 end exponent straight c to the power of 6 close parentheses end cell row blank equals cell straight a to the power of negative 4 plus open parentheses negative 3 close parentheses end exponent straight b to the power of 4 plus open parentheses negative 9 close parentheses end exponent straight c to the power of negative 6 plus 6 end exponent end cell row blank equals cell straight a to the power of negative 7 end exponent straight b to the power of negative 5 end exponent straight c to the power of 0 end cell row blank equals cell straight a to the power of negative 7 end exponent straight b to the power of negative 5 end exponent end cell row blank equals cell fraction numerator 1 over denominator straight a to the power of 7 straight b to the power of 5 end fraction end cell end table end style 


Bentuk sederhana dari begin mathsize 14px style open parentheses a squared b to the power of negative 2 end exponent c cubed close parentheses to the power of negative 2 end exponent open parentheses a b cubed c to the power of negative 2 end exponent close parentheses to the power of negative 3 end exponent end style adalah begin mathsize 14px style fraction numerator 1 over denominator straight a to the power of 7 straight b to the power of 5 end fraction end style 

Jadi, jawaban yang tepat adalah B

Pembahasan terverifikasi oleh Roboguru

Terakhir diupdate 06 Februari 2021

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