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If f(x)=2 x cot ^(-1)x + log (sqrt(1+x^2...

If `f(x)=2 x cot ^(-1)x + log (sqrt(1+x^2)-x ` then f(x)

A

decreases on `(-oo, oo)`

B

decreases on `[0, oo)`

C

neither decreases nor increases on `[0, oo]`

D

increases on `(-oo, oo)`

Text Solution

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The correct Answer is:
D
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