Jika f (x)= 8x-2 dan g (x)= x+2 ------ tentukan X+1 A. (Fog ) (x) B. (g o f) (x)

Question

Matematika Diposting : 2018-02-27 Diupdate : 2018-07-19 Oktavian02

Pertanyaan

Jika f (x)= 8x-2 dan g (x)= x+2
------ tentukan
X+1
A. (Fog ) (x)
B. (g o f) (x)

Answer 1

(fog)(x) = f(g(x))
=f(x+2)
=8(x+2)-2
=8x+14

(gof)(x)=g(f(x))
=g(8x-2)
=(8x-2)+2
=8x