Definition:Cosecant/Real Function

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Definition

Let $x \in \C$ be a real number.

The real function $\csc x$ is defined as:

$\csc x = \dfrac 1 {\sin x}$

where $\sin x$ is the sine of $x$.


The definition is valid for all $x \in \R$ such that $\sin x \ne 0$.


Also denoted as

The cosecant function:

$\csc$

can often be seen written as:

$\cosec$