McqMate
| Q. |
The sum n term of an A P with first term a and common difference d is |
| A. | Na |
| B. | n/2 [2a +(n-1)d] |
| C. | A + (n-1)d |
| D. | − 1 − 1 |
| Answer» B. n/2 [2a +(n-1)d] | |
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