And so let's first think about it. What is the width of each of these rectangles going to be? Well, I am taking this interval from pi to two pi, and I'm gonna divide it into n equal intervals. So the width of each of these, the width of each of these, is going to be two pi minus pi. So I'm just taking the difference between my bounds of integration, and I am dividing by n, which is equal to pi over n. So that's the width of each of these, that's pi over n. This is pi over n, this is pi over n. And what's the height of each of these rectangles? And remember, this is a right Riemann sum, so it's going to be the right end of our rectangle is going to define the height. So this right over here, what would this height be?