Question

Dada as funções reais f(x)= x²-1 e g(x) = -x+1 calcule (fog) (1)

Answer 1

(fog) (1) = f(g(1))
g(1) = -1 +1
g(1) = 0
f(g(1)) = f(0)
f(0) = 0 - 1
f(0) = -1
Resposta final= (fog) (1) = -1