Συνάρτηση tanc

limits of functions
Trigonometric functions	limits
sinc function	$\lim_{x \to 0}\frac{\sin x}{x} = 1$
tanc function	$\lim_{x \to 0}\frac{\tan x}{x} = 1$
cosc function	$\lim _{x\to 0}{\frac {1-\cos x}{x}}=0$
cotc function	$\lim _{x\to 0}{\frac {1-\cot x}{x}}=-\infty$