Pertanyaan

Hasil dari 4 5 − 5 1 5 − 3 × 2 5 − 5 9 − 3 . 5 − 10 adalah ...

Hasil dari $\frac{1 5 ^{- 3}}{4 5 ^{- 5}} \times \frac{9 ^{- 3} . 5 ^{- 10}}{2 5 ^{- 5}}$ adalah $...$

Ikuti Tryout SNBT & Menangkan E-Wallet 100rb

Habis dalam

Klaim

N. Puspita

Master Teacher

Jawaban terverifikasi

Jawaban

jawaban yang benar adalah D.

Pembahasan

Konsep: Oleh karena itu, jawaban yang benar adalah D.

Konsep: straight a to the power of straight m over straight a to the power of straight n equals straight a to the power of straight m minus straight n end exponent space semicolon space open parentheses straight a to the power of straight m close parentheses to the power of straight n equals straight a to the power of mn

$table attributes columnalign right center left columnspacing 0px end attributes row cell 15 to the power of negative 3 end exponent over 45 to the power of negative 5 end exponent cross times fraction numerator 9 to the power of negative 3 end exponent.5 to the power of negative 10 end exponent over denominator 25 to the power of negative 5 end exponent end fraction end cell equals cell 15 to the power of negative 3 end exponent over open parentheses 3.15 close parentheses to the power of negative 5 end exponent cross times fraction numerator open parentheses 3 squared close parentheses to the power of negative 3 end exponent.5 to the power of negative 10 end exponent over denominator open parentheses 5 squared close parentheses to the power of negative 5 end exponent end fraction end cell row blank equals cell fraction numerator 15 to the power of negative 3 end exponent over denominator 3 to the power of negative 5 end exponent.15 to the power of negative 5 end exponent end fraction cross times fraction numerator open parentheses 3 to the power of negative 6 end exponent close parentheses.5 to the power of negative 10 end exponent over denominator open parentheses 5 to the power of negative 10 end exponent close parentheses end fraction end cell row blank equals cell fraction numerator 15 to the power of negative 3 end exponent over denominator 3 to the power of negative 5 end exponent.15 to the power of negative 5 end exponent end fraction cross times 3 to the power of negative 6 end exponent end cell row blank equals cell 15 squared over 3 end cell row blank equals cell 225 over 3 end cell row blank equals 75 end table$

Oleh karena itu, jawaban yang benar adalah D.