Wednesday, 23 November 2016

proof by mathematical induction with the summation operator?

nk=1k3=(nk=1k)2


I can't quite understand this expression, and in fact this is my biggest difficulty in finding a solution. Can someone please explain to me ?
nk=1k=n(n+1)2

No comments:

Post a Comment

real analysis - How to find limhrightarrow0fracsin(ha)h

How to find limh0sin(ha)h without lhopital rule? I know when I use lhopital I easy get $$ \lim_{h\rightarrow 0}...