The value of tan{1/2 Sin^(-1)( (2x)/(1+x...

The value of `tan{1/2 Sin^(-1)( (2x)/(1+x^2))+1/2 cos^(-1) ((1-x^2)/(1+x^2))}` is

A

`(2x)/(1-x^(2))` if `0 le x le 1`

B

`(2x)/(1-x^(2))` if `x lt 1`

C

not finite if `x gt 1`

D

None of these

Verified by Experts

The correct Answer is:

A, C

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