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int(sec^(2)(2tan^(-1)x))/((1+x^(2)))dx...

`int(sec^(2)(2tan^(-1)x))/((1+x^(2)))dx`

Text Solution

Verified by Experts

The correct Answer is:
`(1)/(2)tan(2tan^(-1)x)+C`
Put `2tan^(-1)x=t`.
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