What type of functions are all trigonometric | vedclass

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(D) function $f(x)$ is said to be monotonic on an interval if it is either entirely non-increasing or non-decreasing on that interval.Trigonometric fu

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Not necessarily monotonic

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(D) function $f(x)$ is said to be monotonic on an interval if it is either entirely non-increasing or non-decreasing on that interval.Trigonometric functions like $\sin(x)$,$\cos(x)$,$	an(x)$,etc.,are periodic functions.For example,$\sin(x)$ increases on the interval $(-\frac{\pi}{2}, \frac{\pi}{2})$ and decreases on the interval $(\frac{\pi}{2}, \frac{3\pi}{2})$.Since these functions oscillate between values,they are not monotonic over their entire domain $\mathbb{R}$.Therefore,trigonometric functions are not necessarily monotonic.

What type of functions are all trigonometric functions?

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