Re: HSC 2012 Marathon :)
I have a solution gotta latex it
<a href="http://www.codecogs.com/eqnedit.php?latex=\dpi{80} \textup{Given} ~f\left ( xy \right ) = f(x) @plus; f(y)\\~\textup{Prove~ by ~induction ~that}~ f(a^n) = nf(a) ~\textup{for ~all} ~n\geq 1\\\\ Step~1:Prove ~true~for~...