If the sun n terms of an A.P is (pn+qn2), where p and q are constants, – InterviewSolution

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1.	If the sun n terms of an A.P is (pn+qn2), where p and q are constants, then find the common difference.
Answer» If the sun $n$ terms of an A.P is $(p n + q n^{2})$ , where $p$ and $q$ are constants, then find the common difference.

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