1. \( \begin{align*} \lim\limits_{x \to \, {\pi}} \left({\frac{\sin \left( 4\,x \right)}{x-\pi}}\right) = \end{align*} \) |
\( \qquad\) |
2. \( \begin{align*} \lim\limits_{x \to \, {\frac{\pi}{2}}} \left({\frac{2\,\cos \left( x \right)}{2\,x-\pi}}\right)= \end{align*} \) |