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Let S(n)=cot^(-1)2 +cot^(-1)8 +cot^(-1)1...

Let `S_(n)=cot^(-1)2 +cot^(-1)8 +cot^(-1)18 +cot^(-1)32+….` to `n^(th)` term. Then `lim_(n to oo)S_(n)` is

A

`(pi)/(3)`

B

`(pi)/(4)`

C

`(pi)/(6)`

D

`(pi)/(8)`

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WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2021-MULTIPLE CHOICE QUESTION
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