Sigma Notation and Riemann Sums

Question

Approximate the area under the curve y = x^2 from x = 3 to x = 5 using the Right Endpoint approximation with 4 subdivisions.

Answer 1

Check the link for a video of the solution:

https://drive.google.com/file/d/1IErayYPXftsdc0_b5Tz9Cw3xVZ8HEmRH/view?usp=sharing