10:36

A nice weekend integral

13:09

Calculus Made EASY! Learning Calculus

8:44

one seriously crazy integral!

8:01

A cool log trig inverse trig integral

19:09

An absolute MONSTER of an integral

20:12

A surprisingly difficult integral: int 0 to π/2 arctan(2sin(x)) solution using Feynman's trick

15:37

trig(hyp) integral

16:41

A very interesting integral: int (0,infty) (sin(x)cos(x))/(sinh(x)cosh(x))