Jika (1/3)²ˣ = 27, maka nilai x adalah = .........
Matematika
adebayo
Pertanyaan
Jika (1/3)²ˣ = 27, maka nilai x adalah = .........
2 Jawaban
-
1. Jawaban Ippec
1/9.x=27
jadi x =27.9=243 -
2. Jawaban AndreJS
(1/3)²ˣ = 27
(1/3)²ˣ = 3³
(1/3)²ˣ = [(1/3)^(-1)]³
(1/3)²ˣ = (1/3)^(-3)
==> 2x = -3
==> x = -3/2