Saved Bookmarks
| 1. |
which of the following cannot be the sum of n terms of an AP ? (a) 3n^2+5n (b) n^2+5n (c) \lbrack(n)(n+1)(2n+1)\rbrack/6 (d) n(n+1) /2 . Explain in detail |
| Answer» which of the following cannot be the sum of n terms of an AP ? (a) 3n^2+5n (b) n^2+5n (c) \lbrack(n)(n+1)(2n+1)\rbrack/6 (d) n(n+1) /2 . Explain in detail | |