Question Number 156108 by cortano last updated on 08/Oct/21
$$\:\:\underset{{x}\rightarrow\frac{\pi}{\mathrm{8}}} {\mathrm{lim}}\:\frac{\mathrm{1}+\mathrm{cot}\:\mathrm{6x}}{\mathrm{1}−\mathrm{sin}\:\mathrm{4x}}\:=? \\ $$
lim-x-pi-8-1-cot-6x-1-sin-4x-