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UTS AND DERIVA6. Evaluate:\begin{array}{l}{\lim _{x \rightarrow \frac{\pi}{2}} \frac{e^{\cos x-1}}{\frac{\pi}{2}-x}} \\ {\lim _{x \rightarrow 0} \frac{x\left(e^{2+x}-e^{2}\right)}{1-\cos x}}\end{array}

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