Question

Di ket f(x)=2-2x
g(x)=2x-3
h(x)=8x
tentukn (g.f.h)^-1(x)=...?
(f.h.g)^-1(x)=...?

Answer 1

(g.f.h)(x) = 2(8(2-2X)) - 3
= 2(16-16x)-3
= -32x + 29

y = -32x + 29
x = (29 - y) / 32
(g.f.h)^-1(x) = (29 - x) / 32

~

(f.h.g)(x) = 2 - 2(8(2x-3))
= 2 - 2(16x - 24)
= 2 - 32x + 48

y = -32x + 50
x = (50 - y) / 32
(f.h.g)^-1(x) = (50 - x) / 32