Question Number 105990 by Muhsang S L last updated on 02/Aug/20
$$\underset{{x}\rightarrow\mathrm{0}} {\mathrm{lim}}\:\left(\mathrm{cosec}\:^{\mathrm{2}} \mathrm{2}{x}\:−\:\frac{\mathrm{1}}{\mathrm{4}{x}^{\mathrm{2}} }\right)\:=\:? \\ $$
Answered by bemath last updated on 02/Aug/20
