Evaluating f(x+1/x)=x^65+1/x^65
8:43
Simplifying a Nice Radical Expression with Cube Roots
12:43
A Cool Functional Equation
19:32
Math for fun, sin(z)=2
11:18
Solving f(x+1/x)=x^5+1/x^5 in Three Ways
12:10
A Nice Functional Equation [f(x+y)=f(x)+f(y)+2xy]
12:07
A Functional Equation from Putnam and Beyond
20:37
Integrate x^-x dx
22:08