Question Number 153722 by EDWIN88 last updated on 09/Sep/21
$$\:\:\underset{{x}\rightarrow\mathrm{0}} {\mathrm{lim}}\:\frac{\mathrm{tan}\:{x}+{x}\:\mathrm{sec}\:{x}−\mathrm{sin}\:{x}−{x}}{{x}^{\mathrm{3}} \:\mathrm{cos}\:{x}}\:=? \\ $$
lim-x-0-tan-x-x-sec-x-sin-x-x-x-3-cos-x-