$\let\divisionsymbol\div \let\oldRe\Re \let\oldIm\Im$

Trigonometric Function

sin

$\sin x$

\sin x
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cos

$\cos x$

\cos x
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tan

$\tan x$

\tan x
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sin sample

$\begin{eqnarray} \sin 45^\circ = \frac{ \sqrt{2} }{ 2 } \end{eqnarray}$

\begin{eqnarray}
\sin 45^\circ
 = \frac{ \sqrt{2} }{ 2 }
\end{eqnarray}
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cos sample

$\begin{eqnarray} \cos \frac{ \pi }{ 3 } = \frac{ 1 }{ 2 } \end{eqnarray}$

\begin{eqnarray}
\cos \frac{ \pi }{ 3 }
 = \frac{ 1 }{ 2 }
\end{eqnarray}
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tan sample

$\begin{eqnarray} \tan \theta = \frac{ \sin \theta }{ \cos \theta } \end{eqnarray}$

\begin{eqnarray}
\tan \theta
 = \frac{ \sin \theta }{ \cos \theta }
\end{eqnarray}
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sec

$\sec x$

\sec x
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csc

$\csc x$

\csc x
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cot

$\cot x$

\cot x
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arcsin

$\arcsin x$

\arcsin x
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arccos

$\arccos x$

\arccos x
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arctan

$\arctan x$

\arctan x
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sinh

$\sinh x$

\sinh x
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Hyperbolic functions are not trigonometric functions, but I will introduce them here.

cosh

$\cosh x$

\cosh x
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tanh

$\tanh x$

\tanh x
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coth

$\coth x$

\coth x
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