Question

( operatorname{ta} geqslant 0 )
6

# (B) 040 (A) 325 IfS, S, and S, denote the sum of first ni, n, and nz terms respectively ofan A.P then ni S (1-1)+ (n - n,) + (n - n,) is equal to (C) SS, S, n2 (A) (B) 0 (D) nện, n, 1

Solution