$$\lim_{x \to \frac{\pi}{2}^-}\left(\left(\frac{\sin{\left(x \right)}}{\cos{\left(3 x \right)}} + \cos{\left(x \right)}\right) + \sin{\left(3 x \right)}\right) = \infty$$
Más detalles con x→pi/2 a la izquierda$$\lim_{x \to \frac{\pi}{2}^+}\left(\left(\frac{\sin{\left(x \right)}}{\cos{\left(3 x \right)}} + \cos{\left(x \right)}\right) + \sin{\left(3 x \right)}\right) = \infty$$
$$\lim_{x \to \infty}\left(\left(\frac{\sin{\left(x \right)}}{\cos{\left(3 x \right)}} + \cos{\left(x \right)}\right) + \sin{\left(3 x \right)}\right)$$
Más detalles con x→oo$$\lim_{x \to 0^-}\left(\left(\frac{\sin{\left(x \right)}}{\cos{\left(3 x \right)}} + \cos{\left(x \right)}\right) + \sin{\left(3 x \right)}\right) = 1$$
Más detalles con x→0 a la izquierda$$\lim_{x \to 0^+}\left(\left(\frac{\sin{\left(x \right)}}{\cos{\left(3 x \right)}} + \cos{\left(x \right)}\right) + \sin{\left(3 x \right)}\right) = 1$$
Más detalles con x→0 a la derecha$$\lim_{x \to 1^-}\left(\left(\frac{\sin{\left(x \right)}}{\cos{\left(3 x \right)}} + \cos{\left(x \right)}\right) + \sin{\left(3 x \right)}\right) = \frac{\cos{\left(1 \right)} \cos{\left(3 \right)} + \sin{\left(3 \right)} \cos{\left(3 \right)} + \sin{\left(1 \right)}}{\cos{\left(3 \right)}}$$
Más detalles con x→1 a la izquierda$$\lim_{x \to 1^+}\left(\left(\frac{\sin{\left(x \right)}}{\cos{\left(3 x \right)}} + \cos{\left(x \right)}\right) + \sin{\left(3 x \right)}\right) = \frac{\cos{\left(1 \right)} \cos{\left(3 \right)} + \sin{\left(3 \right)} \cos{\left(3 \right)} + \sin{\left(1 \right)}}{\cos{\left(3 \right)}}$$
Más detalles con x→1 a la derecha$$\lim_{x \to -\infty}\left(\left(\frac{\sin{\left(x \right)}}{\cos{\left(3 x \right)}} + \cos{\left(x \right)}\right) + \sin{\left(3 x \right)}\right)$$
Más detalles con x→-oo