5:37

They didn't get this integral right, so here's the solution (Berkeley Math Tournament Integral bee)

8:13

Math for fun: solving (4^x+8)^4-(8^x-4)^4=(4+8^x+4^x)^4

8:02

Finding the domain of x^x

8:48

System of exponetial/logarithmic equations

6:46

You probably haven't solved a square root equation like this before

7:41

A non-real way of solving Fresnel's integrals (but I am not sure if it's legit)

4:48

Cubics: Completing the cube.

6:29

A proof for sin(a+b) and cos(a+b) that you probably haven’t seen before