Writing Definite Integrals from Limits of Riemann Sums

In this video we go over how to write a right Riemann sum whose limit is the value of a definite integral. After going over that we work in reverse! From limits to definite integrals.
We do a few examples where we have the limit of the sum and we want to figure out what definite integral it represents.
This pretty much all comes down to figuring out the delta x, the function, and the bounds. Once you get the hand of it it's not that bad.
This is a good candidate for an AP exam multiple choice question so it's very worth knowing.