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