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Find the value of tan { 1/2 sin^(-1) ...

Find the value of
`tan { 1/2 sin^(-1) ((2x)/(1+x^(2))) + 1/2 cos^(-1) ((1-y^(2))/(1+ y^(2)))}`

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

Text Solution

Verified by Experts

The correct Answer is:
A, C
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