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limites com funçoes trigonometricas com notavel https://forumdematematica.org/viewtopic.php?f=7&t=8562 |
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Autor: | TelmaG [ 25 abr 2015, 13:06 ] |
Título da Pergunta: | Re: limites com funçoes trigonometricas com notavel |
\((1)\; \lim_{x\rightarrow 0}\left ( \frac{2}{x\, ^{2}}\: \tan ^{2}\left ( \frac{x}{3} \right ) \right )\; ^{\infty \times 0}\) \((2)\; \lim_{x\rightarrow 0}\left ( \frac{2}{x\, ^{2}}\; \frac{\sin ^{2}\left ( \frac{x}{3} \right )}{\cos ^{2}\left ( \frac{x}{3} \right )} \right )\) \((3)\; \lim_{x\rightarrow 0}\left ( \frac{2}{\cos ^{2}\left ( \frac{x}{3} \right )}\; \frac{\sin ^{2}\left ( \frac{x}{3} \right )}{x^{2}} \right )\) \((4)\; \lim_{x\rightarrow 0}\left ( \frac{2}{\cos ^{2}\left ( \frac{x}{3} \right )}\; \frac{\sin \left ( \frac{x}{3} \right )}{x}\; \frac{\sin \left ( \frac{x}{3} \right )}{x}\right )\) \((5)\; \lim_{x\rightarrow 0}\left ( \frac{2}{\cos ^{2}\left ( \frac{x}{3} \right )}\; \frac{\sin \left ( \frac{x}{3} \right )}{\frac{x}{3}}\times \frac{1}{3}\; \frac{\sin \left ( \frac{x}{3} \right )}{\frac{x}{3}}\times \frac{1}{3} \right )\) \((6)\; \frac{2}{\cos 0}\times \frac{1}{9}\times 1\times 1=\frac{2}{9}\) Opção B |
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