Induction?Here's the question
Assume that n is even. Shaw that, for n>=4,
(nC2)*2^2 + (nC4)4^2 + (nC6)6^2.... + (nCn)n^2 = n(n + 1)2^(n-3)
lolololol, that's exactly what i was trying to do even though i'm not supposed to when they didn't ask for induction. It didn't work (as expected)Induction?
Ie. Prove for n = 4, assume for n = k, where k is an even integer >= 4, then prove for n = k + 2?