Integral of sec(x) but without that trick!
16:59
integration by parts, DI method, VERY EASY
14:54
Why I don't teach LIATE (integration by parts trick)
16:51
You need to try this integral
18:08
a super nice functional equation
24:55
Integral of so many things! (great for calculus 2 review)
9:58
Math for fun: a 2nd derivative rule?
20:19
Amateurs Just Solved a 30-Year-Old Math Problem
17:26