Elsai

This page lists questions and answers that were posted by visitors named Elsai.

Questions

The following questions were asked by visitors named Elsai.

Prove: 1^2+2^2+3^2+...+n^2= [n(n+1)(2n+1)]/6 wher: n is natural number
5 years ago

Answers

The following answers were posted by visitors named Elsai.