If S_r = |\table \2r,x,n(n+1);\6r^2 -1,y,n^2(2n+3);4r^3 - 2nr,z,n^3(n+1) | , then the value of \sum^{n}_{r=1} S_r is independent of

Correct Answer is : x, y, z and n

WBJEE 2018 Math Solved Paper

Question : 6 of 75

Marks: +1, -0

If Sr =|

| , then the value of

r=1

Sr is independent of

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