1.

Let, Sn denote the sum of first n terms of an arithmetic progression whose first term is −4 and common difference is 1. If Vn=2Sn+2−2Sn+1+Sn (n∈N), then the minimum value of Vn is

Answer»

Let, Sn denote the sum of first n terms of an arithmetic progression whose first term is 4 and common difference is 1. If Vn=2Sn+22Sn+1+Sn (nN), then the minimum value of Vn is



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