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If a1, a2, a3.....an are in H.P., then a1a2+a3+......an . a2a1+a3+.....+an,...... ana1+a2+.......+an−1 are in

Answer»

If a1, a2, a3.....an are in H.P., then a1a2+a3+......an . a2a1+a3+.....+an,...... ana1+a2+.......+an1

are in




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