Proof of the sum of r^2 series

preview_player
Показать описание
How the proof the formula for the sum of the first n r^2 terms.
Рекомендации по теме
Комментарии
Автор

Your explanation is superb. I understand all that you did even though I am not so good at math.
The only problem is why did you start out by saying consider the summation from 1 to n of (r+1)^3-r^3?

EE-Spectrum
Автор

What's the summation formula for (x²+1)/(x²-1) please help solve

senpaichristian