underset(xrarroo)(lim)(cot^(-1)(sqrt(x+1...

`underset(xrarroo)(lim)(cot^(-1)(sqrt(x+1)+sqrtx))/(sec^(-1){((2x+1)/(x-1))^(x)})=`

A

1

B

0

C

`(pi)/2`

D

None of these

Verified by Experts

The correct Answer is:

A

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