Question

Considerando a funçção F ,dada por F (x) {2x,se x < ou igual a 0 --- X ² + 5X - 1, SE 0 < X < ou igual a 5. -2x+2,se x >5 } Calcule F(0) +f (-1) +(1) / F(5)+F(6)

Answer 1

Bom dia Ivo

f(x) = 2x se x ≤ 0 
f(x) = x² + 5x - 1 se 0 < x ≤ 5 
f(x) = -2x + 2 se x > 5

f(0) = 2x = 0
f(-1) = 2x = -2
f(1) = x² + 5x - 1 = 1 + 5 - 1 = 5
f(5) = x² + 5x - 1 = 25 + 25 - 1 = 49
f(6) = -2x + 2 = -12 + 2 = -10

(f(0) + f(-1) + f(1))/(f(5) + f(6) =

(0 - 2 + 5)/(49 - 10) = 3/39