The value of int(-1//sqrt3)^(1//sqrt3)(c...

The value of `int_(-1//sqrt3)^(1//sqrt3)(cos^(-1)((2x)/(1+x^(2)))+tan^(-1)((2x)/(1-x^(2)))dx)/(1+e^(x))` is equal to

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The correct Answer is:

`(pi)/(2)xx(1)/(sqrt(3))`

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