first-7-terms-is-49
| Topic | Replies | Views | Activity | |
|---|---|---|---|---|
| The sum of first 7 terms of an A.P. is 49 and that of first 17 terms is 289 |
|
1 | 333 | June 25, 2019 |
| Topic | Replies | Views | Activity | |
|---|---|---|---|---|
| The sum of first 7 terms of an A.P. is 49 and that of first 17 terms is 289 |
|
1 | 333 | June 25, 2019 |