jika f(x)=2x dan g(x)=3-5x. tentukan (g o f)-1(x)

Fungsi Komposisi

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

g(f(x)) = 3 - 5(2x)
g(f(x)) = 3 - 10x
y = 3 - 10x
10x = (3 - y)
x = (3 - y)/10

(gof)^-1 (x) = (3 - x)/10 ✔