# What are the six trigonometric functions of an angle?

Oct 31, 2015

$\sin \left(x\right)$, $\cos \left(x\right)$, $\tan \left(x\right)$, $\csc \left(x\right)$, $\sec \left(x\right)$, $\cot \left(x\right)$.

#### Explanation:

$\cos \left(x\right) = \sin \left(\frac{\pi}{2} - x\right)$

$\tan \left(x\right) = \frac{\sin \left(x\right)}{\cos \left(x\right)}$

$\csc \left(x\right) = \frac{1}{\sin} \left(x\right)$

$\sec \left(x\right) = \frac{1}{\cos} \left(x\right)$

$\cot \left(x\right) = \frac{1}{\tan} \left(x\right)$