$$\lim_{x \to \infty} \log{\left(e^{4} x \cos{\left(3 x \right)} \right)}^{5}$$
$$\lim_{x \to 0^-} \log{\left(e^{4} x \cos{\left(3 x \right)} \right)}^{5} = -\infty$$
Más detalles con x→0 a la izquierda$$\lim_{x \to 0^+} \log{\left(e^{4} x \cos{\left(3 x \right)} \right)}^{5} = -\infty$$
Más detalles con x→0 a la derecha$$\lim_{x \to 1^-} \log{\left(e^{4} x \cos{\left(3 x \right)} \right)}^{5} = - 640 \pi^{2} + 1280 \log{\left(- \cos{\left(3 \right)} \right)} + 5 \pi^{4} \log{\left(- \cos{\left(3 \right)} \right)} - 120 \pi^{2} \log{\left(- \cos{\left(3 \right)} \right)}^{2} + 160 \log{\left(- \cos{\left(3 \right)} \right)}^{3} + \log{\left(- \cos{\left(3 \right)} \right)}^{5} + 20 \log{\left(- \cos{\left(3 \right)} \right)}^{4} - 10 \pi^{2} \log{\left(- \cos{\left(3 \right)} \right)}^{3} + 640 \log{\left(- \cos{\left(3 \right)} \right)}^{2} - 480 \pi^{2} \log{\left(- \cos{\left(3 \right)} \right)} + 1024 + 20 \pi^{4} - 160 i \pi^{3} + 1280 i \pi \log{\left(- \cos{\left(3 \right)} \right)} - 10 i \pi^{3} \log{\left(- \cos{\left(3 \right)} \right)}^{2} + 80 i \pi \log{\left(- \cos{\left(3 \right)} \right)}^{3} + 5 i \pi \log{\left(- \cos{\left(3 \right)} \right)}^{4} + 480 i \pi \log{\left(- \cos{\left(3 \right)} \right)}^{2} - 80 i \pi^{3} \log{\left(- \cos{\left(3 \right)} \right)} + i \pi^{5} + 1280 i \pi$$
Más detalles con x→1 a la izquierda$$\lim_{x \to 1^+} \log{\left(e^{4} x \cos{\left(3 x \right)} \right)}^{5} = - 640 \pi^{2} + 1280 \log{\left(- \cos{\left(3 \right)} \right)} + 5 \pi^{4} \log{\left(- \cos{\left(3 \right)} \right)} - 120 \pi^{2} \log{\left(- \cos{\left(3 \right)} \right)}^{2} + 160 \log{\left(- \cos{\left(3 \right)} \right)}^{3} + \log{\left(- \cos{\left(3 \right)} \right)}^{5} + 20 \log{\left(- \cos{\left(3 \right)} \right)}^{4} - 10 \pi^{2} \log{\left(- \cos{\left(3 \right)} \right)}^{3} + 640 \log{\left(- \cos{\left(3 \right)} \right)}^{2} - 480 \pi^{2} \log{\left(- \cos{\left(3 \right)} \right)} + 1024 + 20 \pi^{4} - 160 i \pi^{3} + 1280 i \pi \log{\left(- \cos{\left(3 \right)} \right)} - 10 i \pi^{3} \log{\left(- \cos{\left(3 \right)} \right)}^{2} + 80 i \pi \log{\left(- \cos{\left(3 \right)} \right)}^{3} + 5 i \pi \log{\left(- \cos{\left(3 \right)} \right)}^{4} + 480 i \pi \log{\left(- \cos{\left(3 \right)} \right)}^{2} - 80 i \pi^{3} \log{\left(- \cos{\left(3 \right)} \right)} + i \pi^{5} + 1280 i \pi$$
Más detalles con x→1 a la derecha$$\lim_{x \to -\infty} \log{\left(e^{4} x \cos{\left(3 x \right)} \right)}^{5}$$
Más detalles con x→-oo