A perfect precalculus final exam problem
9:50
How to really solve sin(x^2)=sin(x)
13:51
What the 1869 MIT Entrance Exam Reveals About Math Today
10:55
Can we NOT solve x^4+64=0 like this?
5:46
Huh? How do you solve this? Functional equation for precalculus students
5:23
The Tricky 1% Club Question: In a room of 100, 99% are left-handed. How many must leave to get 98%?
9:13
Ramanujan wins again!!
9:15
Finding the BIGGEST rectangle under y=x^3 (but NO calculus!)
26:06