10:10

Two ways to do this integral and a challenge!

16:14

This integral looks crazy

17:49

Thanks viewer, for this nice integral!!

18:55

You won't believe all the tricks for this integral!!

13:39

The solution is an important constant.

17:13

A very unfriendly integral problem!

13:05

Thanks for the very nice integral!

13:17

The phantom integral suggester.