Question Number 12094 by Joel576 last updated on 13/Apr/17
$$\underset{{x}\rightarrow\mathrm{0}} {\mathrm{lim}}\:\frac{{x}\:\mathrm{tan}\:\mathrm{5}{x}}{\mathrm{cos}\:\mathrm{2}{x}\:.\:\mathrm{cos}\:\mathrm{7}{x}} \\ $$
lim-x-0-x-tan-5x-cos-2x-cos-7x-