InterviewSolution
Saved Bookmarks
| 1. |
Let S_(n) denote the sum of the cubes of the first n natural numbers and S'_(n) denote the sum of the first n natural numbers, then underset(r=1)overset(n)Sigma ((S_(r))/(S'_(r))) equals to |
|
Answer» `(N(n+1) (n+2))/(6)` |
|