Pertanyaan

Hasil dari 5 2 − 10 5 adalah ....

Hasil dari $\frac{2}{5} - \frac{5}{10}$ adalah ....

$begin mathsize 14px style fraction numerator 4 square root of 10 over denominator 10 end fraction end style$
$begin mathsize 14px style fraction numerator 3 square root of 10 over denominator 10 end fraction end style$
$begin mathsize 14px style negative fraction numerator 3 square root of 10 over denominator 10 end fraction end style$
$begin mathsize 14px style negative fraction numerator 4 square root of 10 over denominator 10 end fraction end style$

N. Rahayu

Master Teacher

Mahasiswa/Alumni Universitas Negeri Jakarta

Jawaban terverifikasi

Pembahasan

Perhatikan bahwa Jadi, hasil dari adalah . Dengan demikian, jawaban yang tepat adalah C.

Perhatikan bahwa

$begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell fraction numerator square root of 2 over denominator square root of 5 end fraction minus fraction numerator 5 over denominator square root of 10 end fraction end cell equals cell fraction numerator square root of 2 over denominator square root of 5 end fraction cross times fraction numerator square root of 5 over denominator square root of 5 end fraction minus fraction numerator 5 over denominator square root of 10 end fraction cross times fraction numerator square root of 10 over denominator square root of 10 end fraction end cell row blank equals cell fraction numerator square root of 2 cross times square root of 5 over denominator square root of 5 cross times square root of 5 end fraction minus fraction numerator 5 cross times square root of 10 over denominator square root of 10 cross times square root of 10 end fraction end cell row blank equals cell fraction numerator square root of 10 over denominator 5 end fraction minus fraction numerator 5 square root of 10 over denominator 10 end fraction end cell row blank equals cell fraction numerator 2 square root of 10 minus 5 square root of 10 over denominator 10 end fraction end cell row blank equals cell fraction numerator negative 3 square root of 10 over denominator 10 end fraction end cell end table end style$

Jadi, hasil dari adalah $begin mathsize 14px style negative fraction numerator 3 square root of 10 over denominator 10 end fraction end style$ .

Dengan demikian, jawaban yang tepat adalah C.