Respostas

2013-11-13T00:23:28-02:00
F(x)= 4x
g(x)= x²+5

(g o f)(x) = g(f(x))

g(x) = x² + 5
g(4x) = (4x)² + 5
g(4x) = 16x² + 5

(g o f)(x) = g(f(x)) = 16x² + 5