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Question
Choose the correct alternative:
`int sqrt((1 - x)/(1 + x)) "d"x` is
Options
`sqrt(1 - x^2) + sin^-1x + "c"`
`sin^-1x - sqrt(1 - x^2) + "c"`
`log |x + sqrt(1 - x^2)| - sqrt(1 - x^2) + "c"`
`sqrt(1 - x^2) + log|x + sqrt(1 - x^2)| + "c"`
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Solution
`sqrt(1 - x^2) + sin^-1x + "c"`
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