Question

Considere as funções f e g definidas abaixo

a ) 1

b) 0

c) -1

d) -2

e) -3​

Answer 1

Resposta:

$Alternativa\ c.$

Explicação passo a passo:

$f(x)=3x^2-4\ e\ g(x)=-2x+5\\\\\\\frac{f(\sqrt{2})+3g(\frac{1}{2})}{f(-5)-g(-40)}\\\\\\\frac{\{3(\sqrt{2})^2-4\}+3\{-2(\frac{1}{2})+5\}}{\{3(-5)^2-4\}-\{-2(-40)+5\}}\\\\\\\frac{3(2)-4+3(-1+5)}{3(25)-4-80+5}\\\\\\\frac{6-4-3+15}{75-4-80+5}\\\\\\\frac{14}{-4}\\\\\\-1$