MCQ
if Sn denote the sum of n terms of an AP with first term a and common difference d such that Sx/Skx is independent of x , then-
a. d=a     b. d=2a    c. a =2d      d.  d=-a 

Dear Student,
Here is the link for the answer to your query, follow solution 2 of below given query:
https://www.meritnation.com/ask-answer/question/1-if-s1-is-the-sum-of-an-a-p-of-n-odd-number-of-terms-a/arithmetic-progressions/6734300

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