If the sum of the first m terms of an AP be n and the sum of its first

1.	If the sum of the first m terms of an AP be n and the sum of its firstn terms be m then show that the sum of its first (m + n) terms is-(m+n).
Answer» ANSWER: *mbm1426272527285373933739636*

If the sum of the first m terms of an AP be n and the sum of its firstn terms be m then show that the sum of its first (m + n) terms is-(m+n).

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mbm1426272527285373933739636

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If the sum of the first m terms of an AP be n and the sum of its firstn terms be m then show that the sum of its first (m + n) terms is-(m+n).​

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If the sum of the first m terms of an AP be n and the sum of its firstn terms be m then show that the sum of its first (m + n) terms is-(m+n).