Update ANS: If the sum of first 7 terms of an AP is 49 and sum of 17 terms is 289, find the sum of first n terms.

26 Apr 2021

If the sum of first 7 terms of an AP is 49 and sum of 17 terms is 289, find the sum of first n terms.

If the sum of first 7 terms of an AP is 49 and sum of 17 terms is 289, find the sum of first n terms. Ankit Bhaiya

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