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The value of lim(ntooo)sum(r=1)^(n)cot^(...

The value of `lim_(ntooo)sum_(r=1)^(n)cot^(-1)((r^(3)-r+1/r)/2)` is

A

A. `pi`

B

B. `(pi)/4`

C

C. `(pi)/2`

D

D. `pi`

Text Solution

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The correct Answer is:
C
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ARIHANT MATHS-LIMITS-Exercise (Single Option Correct Type Questions)
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