Lt(ntooo)sum(r=1)^(n)(1)/(n)[sqrt ((n+r)...

`Lt_(ntooo)sum_(r=1)^(n)(1)/(n)[sqrt ((n+r)/(n-r))]`

A

`pi/2`

B

`2pi`

C

`pi/2 -1`

D

`pi/2 +1`

Verified by Experts

The correct Answer is:

D

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