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Pertanyaan

Bentuk rasional dari undefined adalah ....

  1. undefined 

  2. undefined 

  3. undefined 

  4. undefined 

N. Puspita

Master Teacher

Jawaban terverifikasi

Jawaban

jawaban yang tepat adalah A.

Pembahasan

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.

95

5.0 (2 rating)

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