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"tan"1/2["sin"^(-1)(2x)/(1+x^(2))+"cos"^...

`"tan"1/2["sin"^(-1)(2x)/(1+x^(2))+"cos"^(-1)(1-y^(2))/(1+y^(2))]`

Text Solution

Verified by Experts

The correct Answer is:
`(x+y)/(1-xy)`
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