# Limits of Trigonometric functions

There are two most useful trigonometric limit rules in calculus. So, learn the limit properties firstly and you will learn how limits of trigonometric functions are used for dealing trigonometric functions in calculus.

$(1) \,\,\,\,\,\,$ $\displaystyle \large \lim_{x \,\to\, 0}{\normalsize \dfrac{\sin{x}}{x}} \,=\, 1$

$(2) \,\,\,\,\,\,$ $\displaystyle \large \lim_{x \,\to\, 0}{\normalsize \dfrac{\tan{x}}{x}} \,=\, 1$

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