Question

Diket f(x) = 2x + 1
g(x) = x2
tentukan A. (fog)(x) B.(gof)(x) C.(fof)(x) D.(gog)(x) ? tolong bantu^^

Answer 1

A. (fog)(x) = 2x + 1 = 2(x2) + 1 = 2x2 +1
b. (gof)(x) = x2 = (2x + 1)2 = 4x2 + 4x + 1
c. (fof)(x) = 2x + 1 = 2(2x +1) + 1 = 4x + 2 + 1 = 4x + 3
d. (gof)(x) = x2 = (x2)2 = x4