MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
| 1. |
The sum of n terms of an A.P. whose first term and last term are knows as … |
| A. | n/2 (a +1 ) |
| B. | n/2 ( a +nd) |
| C. | n/2 ( 2a +1n ) |
| D. | None |
| Answer» B. n/2 ( a +nd) | |