If in an AP; the sum of m terms is equal to n and sum of n terms is equal to m . Then prove that sum of (m+n) terms is `-(m+n)`

If in an A.P.the sum of m terms is equal to n and the sum of n terms is equal to m then prove that the sum of (m+n) terms is -(m+n)

If in an A.P.the sum of m terms is equal of n and the sum of n terms is equal to m, then prove that the sum of -(m+n) terms is (m+n).

In an A.P.the sum of m terms of an AP is n and sum of n terms of AP is m,then prove that sum of (m+n) terms of AP is -(m+n)

In an A.P, the sum of first 2n terms is equal to the sum of next n terms. Then the ratio of the sum of first 3n terms to the next n terms is

If the sum of m terms of an A.P. is same as the sum of its n terms, then the sum of its (m+n) terms is

The sum of m and n terms of an A.P. are n and m respectively. Prove that the sum of (m + n) terms will be - (m+n).

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

If the sum of m terms of an A.P is equal to these that n terms and also to the sum of the next p terms,prove

If the sum of m terms of an A.P is equal to these that n terms and also to the sum of the next p terms,prove