406,417 views
In this video we will find the descent time from a straight hill (y=x) and a parabolic hill (y=x^2) and find out which of them is smaller. In this video we find the length of an ellipse and obtain a series expansion for an elliptic integral of the second kind: • The length of an ellipse and the series expansion for ... If you have the opportunity, support the channel: Sberbank: 4276160020048840 Tinkoff: 5536914075973911 regular support: https://boosty.to/hmath