Question

Por favor resolvam essa questão.

Answer 1

f(x) = (- x² - 1)/(x - 2)


f(-1) = - (-1)² - 1 / - 1 - 2
= - 1 - 1 / - 1 - 2
= -2/-3
= 2/3

f(0) = - 0² - 1 / 0 - 2
= -1/-2
= 1/2

f(1/2) = - (1/2)² - 1 / 1/2 - 2
= - 1/4 - 1 / 1/2 - 2
= (-1 -4)/4 / (1 - 4)/2
= -5/4 / -3/2
= -5/4 . 2/-3
= -10/-12
= 10/12
= 5/6

f(-2) = - (-2)² - 1 / -2 -2
= -4 -1 / -2 -2
= -5/-4
= 5/4


f(-1) + f(0) - f(1/2) + f(-2)

2/3 + 1/2 - 5/6 + 5/4
m.m.c. entre 3, 2, 6 e 4 = 12

(8 + 6 - 10 + 15)/12

19/12