Question

dadas as funções f(x)=x*-1 e g(x)=x+2,determine a)f(g(x)) b)g(f(x))​

Answer 1

dadas as funções f(x)=x^2 - 1 e g(x) = x + 2

determine

a) f(g(x)) = f(x + 2) = x^2 + 4x + 4 - 1 = x^2 + 4x + 3

b) g(f(x))​ = g(x^2 - 1) = x^2 - 1 + 2 = x^2 + 1