Definition:Cosecant/Definition from Triangle

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Definition

SineCosine.png

In the above right triangle, we are concerned about the angle $\theta$.

The cosecant of $\angle \theta$ is defined as being $\dfrac{\text{Hypotenuse}} {\text{Opposite}}$.


Also denoted as

The cosecant function:

$\csc$

can often be seen written as:

$\cosec$


Sources