Bentuk sederhana dari (3a6b5/81a9b²)-¹ = A. (3a/b) ³ = B. (3b/a) ³ = C. (a/3b) ³ = D. (b/3a)³ = E. (3ab) ³ = Tlg cepat iya kak
Matematika
Rinda1409
Pertanyaan
Bentuk sederhana dari
(3a6b5/81a9b²)-¹ =
A. (3a/b) ³ =
B. (3b/a) ³ =
C. (a/3b) ³ =
D. (b/3a)³ =
E. (3ab) ³ =
Tlg cepat iya kak
1 Jawaban
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1. Jawaban SadonoSukirno
= {(3/81).b^(5-2) / a^(9-6)}^-1
= {(1/27) . b^3 / a^3}^-1
= {(1/3³) . b^3 / a^3}^-1
= (b^3 / 3^3.a^3}^-1
= 3^3 . a^3 / b^3
= (3a/b)³