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निम्न फलनों के मान ज्ञात कीजिये - `int_(0)^(1)x sqrt(((1-x^(2))/(1+x^(2))))dx`

Answer» Correct Answer - `((pi)/(4)-(1)/(2))`
`int_(0)^(1)x sqrt((1-x^(2))/(1+x^(2)))dx`
माना `x^(2)=cos 2 theta" "rArr" " 2x dx = -2 sin 2 theta d theta`


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