Jika f (x) =1/x dan g(x) =2x-1, tentukan (fog) ¯¹(x)

f(x) = 1/x
g(x) = 2x - 1

(fog) (x)
= 1 / (2x - 1)
y = 1 / (2x - 1)
y(2x - 1) = 1
2yx - y = 1
2yx = 1 + y
x = (1 + y) / 2y
f-¹(x) = (1 + x) / 2x
x ≠ 0