1.

The sum of n terms of three A.P.'s whose first term is 1 and common differences are 1, 2, 3 are S1, S2, S3 respectively. The true relation is

Answer»

The sum of n terms of three A.P.'s whose first term is 1 and

common differences are 1, 2, 3 are S1, S2, S3 respectively. The true

relation is




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