A.  (1/2)tan x/2+tan x2/22+...+nxn-1/xn tan xn/2n

B.  (1/2)tan x/2+(x/2)tan x2/22+...+nxn-1/2n tan xn/2n

C.  (1/2)cot x/2+(x/2)cot x2/22+...+nxn-1/2n cot xn/2n

D.  (1/2)cot x/2+(x/2)cot x/2+...+nxn-1/2n cot xn/2n

1
Correct Answer :
(1/2)cot x/2+(x/2)cot x2/22+...+nxn-1/2n cot xn/2n
Explanation :
No Explanation available for this question

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