f(x) = 2x + 1 g (x) = x-3 tentukan (fog)-i(x)

Fungsi Komposisi

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

f(g(x)) = 2(x - 3) + 1 = 2x - 5

y = 2x - 5
2x = y + 5
x = (y + 5)/2

(f(g(x)))^-1(x)
= (x + 5)/2 ✔