##
Some unsolved problems
*January 3, 2010*

*Posted by Damien Jiang in Problem-solving.*

Tags: functional equation, geometry, IMO longlist, incircle, integer functional equation, Russian Olympiad

9 comments

Tags: functional equation, geometry, IMO longlist, incircle, integer functional equation, Russian Olympiad

9 comments

Happy New Year!

Since we have been too lazy to post lately (and the so-not-lazy Akhil posts mostly elsewhere now), I’m going to post some problems that I probably should be able to solve, but haven’t.