Permisi pak,bu,kak,dek,mas,mba numpang nanya

(f^-1 o g^-1)(x) = (g o f)^-1 (x)

(g o f)(x) = g(f(x))
= 4(1/2x + 1) – 2
= 2x + 4 – 2
= 2x + 2

(g o f)(x) = 2x + 2
y = 2x + 2
2x = y – 2
x = (y-2)/2
(g o f)^-1(x) = (x-2)/2

(f^-1 o g^-1)(x) = 1/2 (x-2)
Jawaban : B