Question

Considere as funções reais f(x) 2x-4/x+1 e g(x) x/√2x+1 . O valor de f(4) + g(12) é ?

Answer 1

f(4)= 2 x 4 - (4/4) + 1; f(4) = 8 -1 +1; f(4)= 8; g(12)= 12/√2x12+1; g(12)= 12/√24+1; g(12)= 12/√25; g(12)= 12/5; ; 8+(12/5)= 52/5;