Math, asked by paridabas17, 10 months ago

sum of first 7 terms of an ap is 49 and that of 17 terms is 289 find the sum of first n terms

Answers

Answered by ALTAF11

4

Hey Mate !!

Answer :-

Sn = n²

Step by step Explanation :-

Let a be first term of AP and d be common difference of AP !!

[ Refer attachment ] !!

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