I just presented my proof, and it was a success. There was a cooler proof, involving complex numbers (mmmm… complex numbers… drooool) that my prof showed me, but he liked mine too. So as promised, here’s the deal:
Find a general formula for f(k)(x) where f(x) = exsin x
My proof is available either in PDF format or as LaTeX source:
http://memethief.com/math/challenge_4_1/
