Saved Bookmarks
| 1. |
Sum of series 1+2+3+.....+n is. n (n+1)/2 ( b ) n (n+1)(c) (n+1)(n+2)/2 (d) none of these solutions |
|
Answer» Answer: Step-by-step explanation: The SUM of It can be derived by USING the sum of ARITHMETIC Progression formula. |
|