Jika f (x) =x+3 dan g (x) =x2-2x+1 maka (f-1 o g) (x)

f(x) = x + 3
inverskan
y = x + 3
f-¹(x) = x - 3

maka
(f-¹og) (x) = (x²-2x+1) - 3
= x²-2x-2

f(x)-1=X-3
f(-1og)(x) =F(-1)(X2-2X+1)
=X2-2X+1-3
=X2-2X-2