3. Calcule os limites com indeterminação. (a) $\lim_{x \to 5...

Calcule os limites com indeterminação. (a) $\lim_{x \to 5} \frac{x-5}{x^2-25}$ (f) $\lim_{x \to 3} \frac{x^2-9}{x-3}$ (b) $\lim_{x \to -3} \frac{x+3}{x^2+4x+3}$ (g) $\lim_{x \to 4} \frac{x-4}{\sqrt{x}-2}$ (c) $\lim_{t \to 1} \frac{t^2+t-2}{t^2-1}$ (h) $\lim_{x \to 2} \frac{\sqrt{x^2+12}-4}{x-2}$ (d) $\lim_{x \to -2} \frac{-2x-4}{x^2+2x}$ (i) $\lim_{x \to -3} \frac{2-\sqrt{x^2+5}}{x+3}$ (e) $\lim_{u \to 1} \frac{u^2-1}{u-1}$ (j) $\lim_{x \to 1} \frac{4-x}{5-\sqrt{x^2+9}}$

Apenas a letra H.

$3. Calcule os limites com indeterminação. (a) $\lim_{x \to 5} \frac{x-5}{x^2-25}$ (f) $\lim_{x \to 3} \frac{x^2-9}{x-3}$ (b) $\lim_{x \to -3} \frac{x+3}{x^2+4x+3}$ (g) $\lim_{x \to 4} \frac{x-4}{\sqrt{x}-2}$ (c) $\lim_{t \to 1} \frac{t^2+t-2}{t^2-1}$ (h) $\lim_{x \to 2} \frac{\sqrt{x^2+12}-4}{x-2}$ (d) $\lim_{x \to -2} \frac{-2x-4}{x^2+2x}$ (i) $\lim_{x \to -3} \frac{2-\sqrt{x^2+5}}{x+3}$ (e) $\lim_{u \to 1} \frac{u^2-1}{u-1}$ (j) $\lim_{x \to 1} \frac{4-x}{5-\sqrt{x^2+9}}$$

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