I'm trying to get this into wolframalpha.com by doing the "prove by induction" command to check my results.
However I'm not sure how to insert it.
I'm trying to get this into wolframalpha.com by doing the "prove by induction" command to check my results.
However I'm not sure how to insert it.
Writing
prove by induction sum of (-1)^i(2i +1) for i from 0 to n equals (-1)^n (n+1) for n > 0seems to be good enough.
And by the way, your proof seems about right!