Answer:

Explanation:
The question is incomplete; however, I'll simplify the given expression as far as it can be simplified.
Given

Required
Simplify

In trigonometry:

So, the expression becomes:

Also in trigonometry:

So, the expression becomes:

Also:

So, we have:

Rearrange the numerator:

Expand the numerator

Factorize:


Apply difference of two squares to the denominator

Divide the numerator and denominator by


Hence:
