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Value of underset(n rarr infty )(Lim) su...

Value of `underset(n rarr infty )(Lim) sum_(r = 1)^(n) Tan^(-1) ((1)/(2r^(2))) ` is

A

0

B

`(pi)/(4)`

C

`(pi)/(3)`

D

`(pi)/(2)`

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Verified by Experts

The correct Answer is:
B
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AAKASH SERIES-REVISION EXERCISE-INVERSE TRIGONOMETRIC FUNCTIONS
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