An introduction to the incredible applications of the Fundamental Theorem of Calculus.
Other great resources on the topic:
vcubingx - Green's Theorem: https://www.youtube.com/watch?v=8SwKD5_VL5o
3Blue1Brown - Divergence and Curl: https://www.youtube.com/watch?v=rB83DpBJQsE
Steve Brunton - Stoke's and Green's Theorem: https://www.youtube.com/watch?v=LqNqqidw2mg
Using Green's Theorem to find area: https://mathinsight.org/greens_theorem_find_area