Functional Equation
16:33
USA Math Olympiad question with @skdjfk
10:34
f(x+1) = f(x+2) +1
8:47
A Functional Equation from Samara Math Olympiads
10:43
Solving a septic equation
5:46
Huh? How do you solve this? Functional equation for precalculus students
12:52
Test d'entrée à l'université de Harvard
8:04
Viral question from China
10:30