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| 1. |
IF THE RATIO OF THE SUM OF THE FIRST N TERMS OF TWO AP IS (7n+1): (4n+27) then find the ratio of their 9the terms. |
| Answer» IF THE RATIO OF THE SUM OF THE FIRST N TERMS OF TWO AP IS (7n+1): (4n+27) then find the ratio of their 9the terms. | |