if x+y=8, find the max of x^y (Lambert W function)
15:17
You see nonlinear equations, they see linear algebra! (Harvard-MIT math tournament)
13:51
so you want a VERY HARD math question?!
9:15
Finding the BIGGEST rectangle under y=x^3 (but NO calculus!)
14:47
An Exact Formula for the Primes: Willans' Formula
8:20
How are they different? Cube root vs the exponent of 1/3
9:50
the COOLEST limit on YouTube!
18:07
18 year old students just discovered a proof of Pythagoras that mathematicians said was impossible
17:26