Question

Questoes : A) lim x1 (x+2) B) lim x3 (xsobre 2-1) C) lim x3 x2-9 /x-3

Answer 1

Resposta:

Explicação passo-a-passo:

a)

$\lim_{x \to \1}(x+2)=(1+2)=3$

b)

$\lim_{x \to \3}(\frac{x}{2}-1)=(\frac{3}{2}-1)=(\frac{3-2}{2})=\frac{1}{2}$

c)

$\lim_{x \to \ 3}(\frac{x^{2}-9}{x-3})= \lim_{x \to \ 3}[\frac{(x+3)(x-3)}{x-3}]= \lim_{x \to \ 3}(x+3)=(3+3)=6$