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In an A.P., if pth term is 1q and qth term is 1p, prove that the sum of first pq terms is 12(pq+1), where p≠q. |
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Answer» In an A.P., if pth term is 1q and qth term is 1p, prove that the sum of first pq terms is 12(pq+1), where p≠q. |
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