Pertanyaan

Bentuk rasional dari 3 12 − 6 adalah ....

Bentuk rasional dari $\frac{12 - 6}{3}$ adalah ....

N. Puspita

Master Teacher

Jawaban terverifikasi

Jawaban

jawaban yang tepat adalah A.

Pembahasan

Ingat: maka Jadi, jawaban yang tepat adalah A.

Ingat:

$begin mathsize 14px style fraction numerator 1 over denominator square root of a end fraction equals fraction numerator 1 over denominator square root of a end fraction cross times fraction numerator square root of a over denominator square root of a end fraction equals fraction numerator square root of a over denominator a end fraction end style$

maka

$begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell fraction numerator square root of 12 minus square root of 6 over denominator square root of 3 end fraction end cell equals cell fraction numerator square root of 12 minus square root of 6 over denominator square root of 3 end fraction cross times fraction numerator square root of 3 over denominator square root of 3 end fraction end cell row blank equals cell fraction numerator open parentheses square root of 12 close parentheses open parentheses square root of 3 close parentheses minus open parentheses square root of 6 close parentheses open parentheses square root of 3 close parentheses over denominator open parentheses square root of 3 close parentheses open parentheses square root of 3 close parentheses end fraction end cell row blank equals cell fraction numerator square root of 36 minus square root of 18 over denominator 3 end fraction end cell row blank equals cell fraction numerator 6 minus 3 square root of 2 over denominator 3 end fraction end cell row blank equals cell 2 minus square root of 2 end cell end table end style$

Jadi, jawaban yang tepat adalah A.