For n e N, prove that sigma k=1 n (-1)^k.k^2=(-1)^n

Saluranedukasion 2024-04-12T11:46:43

For n e N, prove that sigma k=1 n (-1)^k.k^2=(-1)^n (n(n+1))/2.
Loading Tags ...
Loading Related Questions...
Search for a command to run...
For n e N, prove that sigma k=1 n (-1)^k.k^2=(-1)^n (n(n+1))/2.