Question

Resolva esses limites
$a) \: lim \: - > 4 \: \: \frac{ \sqrt{x - 2} }{x - 4} \\ \\ \\ b) lim \: - > 4 \: \: \: \: \: \frac{x}{x - 4}$
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Answer 1

a)

$\lim_{x \to \ 4} \frac{ \sqrt{x - 2} }{x - 4} = \frac{ \sqrt{2} }{0} = \infty$

b)

$\lim_{x \to \ 4} \frac{x}{x - 4} = \frac{4}{0} = \infty$