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If x >1 , then write the value of sin...

If `x >1` , then write the value of `sin^(-1)((2x)/(1+x^2))` in terms of `tan^(-1)x`

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`sin^(-1)((2x)/(1+x^2))` an d let `x=tan theta`
`sin^(-1)((2 tan theta)/(1+tan theta))`
`sin^(-1)(sin 2 theta)`
`2 theta`
Let `x=tan theta` and `theta=tan^(-1)x`
`2 tan^(-1)x=>pi-2tan^(-1)x`
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