Question

dadas as funções F(×)=x² -2×+1 e
G(×)=2×+1

A) F(g(1))

B) G(f(2))

Answer 1

a) f(g(1)) — g(1) = 2.1 + 1

g(1) = 3

f(g(1)) = f(3)

f(3)= 3^2 - 2.3 + 1

f(3) = 4

b) g(f(2)) — f(2) = 2^2 - 2.2 + 1

f(2) = 1

g(f(2)) = g(1)

g(1) = 2.1 + 1

g(1)= 3