of n terms of an A.P. whose first term is a. If the common differenceL – InterviewSolution

1.	of n terms of an A.P. whose first term is a. If the common differenceLet S, denote the sum of n teen by d = S-ksn-1 + S-2, then k=is(A) 1(B) 2(D) none of these(C) 3
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