Question

Sendo f e g definidas, respectivamente, por f(x)=-2x+1 e g(x)=3+2 calcule:

a) f(1) + g(1)
b) f(-1) + g(-1)​

Answer 1

Resposta:

a)

f(1) = -2.1 + 1 = -2 + 1 = -1

g(1) = 5

f(1) + g(1) = -1 + 5 = 4

b)

f(-1) = -2.(-1) + 1 = 2 + 1 = 3

g(-1) = 5

f(-1) + g(-1) = 3 + 5 = 8