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The function f(x) = tan ^-1 x - In(1 + x...

The function `f(x) = tan ^-1 x - In(1 + x^2)` is increasing for

A

`x lt (1)/(2)`

B

`x gt (1)/(2)`

C

`x in [-(1)/(2),(1)/(2)]`

D

`x in [-(1)/(2), oo)`

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The correct Answer is:
A
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