Question

How do you determine the period of `y= cospix`?

Answer 1

`"period"=2`

Explanation:

The period of any cosine function can be found by `T=(2pi)/n` where `n` is the same `n` in the general function `y=a+bcos(nx)`

In `y=cos(pix)`, `n=pi`

So the period of the function is `T=(2pi)/n=(2pi)/pi=2`