1.

If S1,S2,S3−−−−−−−−Sn denotes the sum of 1, 2, 3 ----n terms of an A.P, having first term a. If SkxSx k ≠ 1, is independent of x, then S1+S2+S3−−−−−−−−Sn =

Answer»

If S1,S2,S3Sn denotes the sum of 1, 2, 3 ----n terms of an A.P, having first term a. If SkxSx k 1, is independent of x, then S1+S2+S3Sn =




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