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

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If the sum of first 7 terms of an AP is 49 and that of 17 term is 289 find the sum of first n terms.
04
Oct
If the sum of first 7 terms of an AP is 49 and that of 17 term is 289 find the sum of first n terms. If the sum of first 7 terms of an AP is 49 and that of 17 term is 289 find the sum of first n terms. October 4, 2020 [...]
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