Question

How do you graph `y=2cot(x+pi/2)` and include two full periods?

Answer 1

Plot x == (0, `pi/2`, `pi`, `3pi/2`, `2pi`, `5pi/2`, `3pi`, `7pi/2`, `4pi`)

Explanation:

`2pi = 1 period`
`4pi = 2 period`

You can plot any value in for x but plot `4pi` of x!