If the sum of first n terms of an ap is the same as the sum of its n terms, show that the sum of its first (m+n)terms is zero.
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If the sum of first n terms of an ap is the same as the sum of its n terms, show that the sum of its first (m+n)terms is zero.
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Answer:
If the sum of first m terms of an AP is the same as the sum of its first n terms, show that the sum of its first (m + n) terms is zero