Define all functions that are defined in the set of real numbers excluding zero and satisfy the following:

f(x)+8f(1/x)-63x=0 , x≠0

(In reply to The only solution by Steve Herman)

Nice one, Steve. In my earlier post I missed that my "defining equation" must hold on both sides of x=1, so there is indeed one solution only.

Posted by JLo on 2006-10-19 04:38:58