Find solutions of an equation within an interval
My class has moved on to a new section of trigonometry that I am stuck on.
I am suppose to find all solutions of the equation in the interval [0,2π]
An example problem that is in my text book has a problem with its corresponding answer below, but I don't really follow.
Example: cosł x = cos x
Answer: 0, π/2, π, 3π/2
It would be really helpful if you can explain the steps that you take in order to get the final answer.
Also π = pi.
Thanks in advance