f(x) + 4f(1/x) = 3x.

[1] Find all values of x for which f(x)=f(1/x);

[2] Find all values of x for which f(x)=f(-x).

Now that's funny!  I think the problem is better which two pieces, since solving the first easy part can get get you off on the wrong start for the second part.

Posted by Steve Herman on 2010-10-27 12:49:00