1998 IMO Problems/Problem 6: Difference between revisions
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<cmath>f\left( n^{2}f(m)\right) =m\left( f(n)\right) ^{2}. </cmath> | <cmath>f\left( n^{2}f(m)\right) =m\left( f(n)\right) ^{2}. </cmath> | ||
==Solution== | ==Video Solution== | ||
https://www.youtube.com/watch?v=vOExNCV8jGQ | |||
==See Also== | ==See Also== | ||
where 
is a function such that for all 
,
![\[f\left( n^{2}f(m)\right) =m\left( f(n)\right) ^{2}.\]](http://latex.artofproblemsolving.com/2/a/c/2ac108868d9b31654ca95e1ed205902c83a04cf2.png)
