$$\lim_{x \to 0^-} \operatorname{atan}{\left(\left(\cos{\left(x \right)} - 1\right) \sin{\left(x \right)} \right)} = 0$$
Más detalles con x→0 a la izquierda$$\lim_{x \to 0^+} \operatorname{atan}{\left(\left(\cos{\left(x \right)} - 1\right) \sin{\left(x \right)} \right)} = 0$$
$$\lim_{x \to \infty} \operatorname{atan}{\left(\left(\cos{\left(x \right)} - 1\right) \sin{\left(x \right)} \right)} = \operatorname{atan}{\left(\left\langle -2, 2\right\rangle \right)}$$
Más detalles con x→oo$$\lim_{x \to 1^-} \operatorname{atan}{\left(\left(\cos{\left(x \right)} - 1\right) \sin{\left(x \right)} \right)} = \operatorname{atan}{\left(- \sin{\left(1 \right)} + \sin{\left(1 \right)} \cos{\left(1 \right)} \right)}$$
Más detalles con x→1 a la izquierda$$\lim_{x \to 1^+} \operatorname{atan}{\left(\left(\cos{\left(x \right)} - 1\right) \sin{\left(x \right)} \right)} = \operatorname{atan}{\left(- \sin{\left(1 \right)} + \sin{\left(1 \right)} \cos{\left(1 \right)} \right)}$$
Más detalles con x→1 a la derecha$$\lim_{x \to -\infty} \operatorname{atan}{\left(\left(\cos{\left(x \right)} - 1\right) \sin{\left(x \right)} \right)} = \operatorname{atan}{\left(\left\langle -2, 2\right\rangle \right)}$$
Más detalles con x→-oo