$$\lim_{x \to \infty}\left(\log{\left(\cot{\left(x \right)} \right)} \sin{\left(x \right)}\right)$$
$$\lim_{x \to 0^-}\left(\log{\left(\cot{\left(x \right)} \right)} \sin{\left(x \right)}\right) = 0$$
Подробнее при x→0 слева$$\lim_{x \to 0^+}\left(\log{\left(\cot{\left(x \right)} \right)} \sin{\left(x \right)}\right) = 0$$
Подробнее при x→0 справа$$\lim_{x \to 1^-}\left(\log{\left(\cot{\left(x \right)} \right)} \sin{\left(x \right)}\right) = \log{\left(\cot{\left(1 \right)} \right)} \sin{\left(1 \right)}$$
Подробнее при x→1 слева$$\lim_{x \to 1^+}\left(\log{\left(\cot{\left(x \right)} \right)} \sin{\left(x \right)}\right) = \log{\left(\cot{\left(1 \right)} \right)} \sin{\left(1 \right)}$$
Подробнее при x→1 справа$$\lim_{x \to -\infty}\left(\log{\left(\cot{\left(x \right)} \right)} \sin{\left(x \right)}\right)$$
Подробнее при x→-oo