If x, y, z are respectively the sum of the p, q and r terms of an A.P. prove that x (q-r) + y (r- p) + z (p- q) = 0
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If x, y, z are respectively the sum of the p, q and r terms of an A.P. prove that x (q-r) + y (r- p) + z (p- q) = 0 I hope help you dear friend
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