Question

Dadas duas funções: f(x) = 2x +5 e g(x) = 5x – 2, determine:
a) (fog).
b) (gof).

Answer 1

Resposta:

A) X=2x+5

x - 2x = 5

-3x = 5

x= 5/3

f {x= 1,6}

B) X = 5x - 2

x - 5x = -2

6x = -2

x= -2/6

g {0,3}