$$\lim_{x \to \infty}\left(\frac{\log{\left(x + 1 \right)} \sin{\left(\frac{\pi x}{12} \right)}}{\log{\left(x \right)} \sin{\left(\pi \left(\frac{x}{12} + \frac{1}{12}\right) \right)}}\right)$$
$$\lim_{x \to 0^-}\left(\frac{\log{\left(x + 1 \right)} \sin{\left(\frac{\pi x}{12} \right)}}{\log{\left(x \right)} \sin{\left(\pi \left(\frac{x}{12} + \frac{1}{12}\right) \right)}}\right) = 0$$
Más detalles con x→0 a la izquierda$$\lim_{x \to 0^+}\left(\frac{\log{\left(x + 1 \right)} \sin{\left(\frac{\pi x}{12} \right)}}{\log{\left(x \right)} \sin{\left(\pi \left(\frac{x}{12} + \frac{1}{12}\right) \right)}}\right) = 0$$
Más detalles con x→0 a la derecha$$\lim_{x \to 1^-}\left(\frac{\log{\left(x + 1 \right)} \sin{\left(\frac{\pi x}{12} \right)}}{\log{\left(x \right)} \sin{\left(\pi \left(\frac{x}{12} + \frac{1}{12}\right) \right)}}\right) = -\infty$$
Más detalles con x→1 a la izquierda$$\lim_{x \to 1^+}\left(\frac{\log{\left(x + 1 \right)} \sin{\left(\frac{\pi x}{12} \right)}}{\log{\left(x \right)} \sin{\left(\pi \left(\frac{x}{12} + \frac{1}{12}\right) \right)}}\right) = \infty$$
Más detalles con x→1 a la derecha$$\lim_{x \to -\infty}\left(\frac{\log{\left(x + 1 \right)} \sin{\left(\frac{\pi x}{12} \right)}}{\log{\left(x \right)} \sin{\left(\pi \left(\frac{x}{12} + \frac{1}{12}\right) \right)}}\right)$$
Más detalles con x→-oo