Jawablah nomor 6 saja! Makasih

Mata Pelajaran : Matematika
Materi : Fungsi

f(x) = 3x + 1
g(x) = 2x/(3x - 6)

(fog)(x)
= 3(2x/(3x - 6)) + 1)
= 3 . 2x/(3(x - 2)) + (x - 2)/(x - 2)
= (2x + x - 2)/(x - 2)
= (3x - 2)/(x - 2)

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f(x) = (ax + b)/(cx + d)
f^-1 (x) = (-dx + b)/(cx - a)
•••

(fog)^-1 (x) = (2x - 2)/(x - 3)