$$\lim_{x \to \infty} \log{\left(\frac{x + 3}{x - 4} \right)}^{4 - 2 x} = \infty$$
$$\lim_{x \to 0^-} \log{\left(\frac{x + 3}{x - 4} \right)}^{4 - 2 x} = - 24 \pi^{2} \log{\left(2 \right)}^{2} - 6 \pi^{2} \log{\left(3 \right)}^{2} - 32 \log{\left(2 \right)}^{3} \log{\left(3 \right)} - 8 \log{\left(2 \right)} \log{\left(3 \right)}^{3} + \log{\left(3 \right)}^{4} + 16 \log{\left(2 \right)}^{4} + 24 \log{\left(2 \right)}^{2} \log{\left(3 \right)}^{2} + \pi^{4} + 24 \pi^{2} \log{\left(2 \right)} \log{\left(3 \right)} - 4 i \pi^{3} \log{\left(3 \right)} - 24 i \pi \log{\left(2 \right)} \log{\left(3 \right)}^{2} - 32 i \pi \log{\left(2 \right)}^{3} + 4 i \pi \log{\left(3 \right)}^{3} + 48 i \pi \log{\left(2 \right)}^{2} \log{\left(3 \right)} + 8 i \pi^{3} \log{\left(2 \right)}$$
Más detalles con x→0 a la izquierda$$\lim_{x \to 0^+} \log{\left(\frac{x + 3}{x - 4} \right)}^{4 - 2 x} = - 24 \pi^{2} \log{\left(2 \right)}^{2} - 6 \pi^{2} \log{\left(3 \right)}^{2} - 32 \log{\left(2 \right)}^{3} \log{\left(3 \right)} - 8 \log{\left(2 \right)} \log{\left(3 \right)}^{3} + \log{\left(3 \right)}^{4} + 16 \log{\left(2 \right)}^{4} + 24 \log{\left(2 \right)}^{2} \log{\left(3 \right)}^{2} + \pi^{4} + 24 \pi^{2} \log{\left(2 \right)} \log{\left(3 \right)} - 4 i \pi^{3} \log{\left(3 \right)} - 24 i \pi \log{\left(2 \right)} \log{\left(3 \right)}^{2} - 32 i \pi \log{\left(2 \right)}^{3} + 4 i \pi \log{\left(3 \right)}^{3} + 48 i \pi \log{\left(2 \right)}^{2} \log{\left(3 \right)} + 8 i \pi^{3} \log{\left(2 \right)}$$
Más detalles con x→0 a la derecha$$\lim_{x \to 1^-} \log{\left(\frac{x + 3}{x - 4} \right)}^{4 - 2 x} = - \pi^{2} - 4 \log{\left(2 \right)} \log{\left(3 \right)} + \log{\left(3 \right)}^{2} + 4 \log{\left(2 \right)}^{2} - 2 i \pi \log{\left(3 \right)} + 4 i \pi \log{\left(2 \right)}$$
Más detalles con x→1 a la izquierda$$\lim_{x \to 1^+} \log{\left(\frac{x + 3}{x - 4} \right)}^{4 - 2 x} = - \pi^{2} - 4 \log{\left(2 \right)} \log{\left(3 \right)} + \log{\left(3 \right)}^{2} + 4 \log{\left(2 \right)}^{2} - 2 i \pi \log{\left(3 \right)} + 4 i \pi \log{\left(2 \right)}$$
Más detalles con x→1 a la derecha$$\lim_{x \to -\infty} \log{\left(\frac{x + 3}{x - 4} \right)}^{4 - 2 x} = 0$$
Más detalles con x→-oo