Answer:
The zeros of the function in the interval of [-2π,2π] are
.
Explanation:
The given function is

We have to find the zeros of the function in the interval of [-2π,2π].
If
, then

Where n is an integer.
Put f(x)=0, to find the zeroes of the function.


Divide both sides by 2.

Therefore the zeros of the function in the interval of [-2π,2π] are
.