Jika f(x) = 2x + 1 dan g(x) = 2-3x maka (f o g)^-1 (6) = .....
Matematika
FiyahRizki
Pertanyaan
Jika f(x) = 2x + 1 dan g(x) = 2-3x maka (f o g)^-1 (6) = .....
2 Jawaban
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1. Jawaban Jawer17
f(x) = 2x + 1 dan g(x) = 2-3x
fog(x) = f(g(x)) = f(2 - 3x)
= 2(2 - 3x) + 1
= 4 - 6x + 1
fog(x) = 5 - 6x
fog^-1(x) = (5 - x)/6
(fog)^-1(6) = (5 - 6)/6 = -1/6 -
2. Jawaban mauridzclary
f o g (x) = 2(2-3x) + 1 = 4 -6x + 1 = 5 - 6x
y = 5 - 6x
x = 5 - x/6
semoga bermanfaat