Question

term is 1.
28. If the sum of m terms of an A.P is the same as the sum of its n terms, show that
the sum of its (m + n) th terms is zero.
29. The ratio of the sums of m and n terms of an A.P is m? : n2. Show that the ratio
of the mth and nth terms is (2m - 1): (2n-1).
30.The sum of n, 2n, 3n terms of an A.P are S1, S2 and Sz respectively. Prove that
S3 = 3(S2 - S1)​

Answer 1

Answer:

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Step-by-step explanation: