- #1

maherelharake

- 261

- 0

## Homework Statement

I need to prove the equation attached. I also have to describe why the integrals vanish.

## Homework Equations

## The Attempt at a Solution

I am not sure how to begin. Our teacher told us this equation is known as the orthogonality condition for sines. I also know that n' is a positive integer. I think if I get help starting this I will be able to proceed.