Question

Sendo f(x) = x² - 2x e g(x) = x + 2. O valor de gof (1) é?

Answer 1

Resposta:

f(1) = 1² - 2.1

f(1) = 1 - 2

f(1) = -1

g(-1) = -1 + 2

g(-1) = 1

gof(1) = 1