Multi variable chain rule (back propagation part 2)

In this video, we will be going over the chain with multi variable calculus. This is going to be an important concept to learn. Check out these videos for a better understanding: https://www.youtube.com/watch?v=HOYA0-pOHsg&t= https://www.youtube.com/watch?v=NO3AqAaAE6o&t=