What would our delta x be? Well, you can see this right over here, this thing that we're multiplying that just is divided by n, and it's not multiplying by an i. So this looks like our delta x. And this right over here looks like delta x times i. So it looks like our delta x is equal to five over n. So what can we tell so far? Well, we could say that, okay, this thing up here, the original thing, is going to be equal to the definite integral. We know our lower bound is going from two to, we haven't figured out our upper bound yet.