f(x)=tan^(-1)x-x, is …………...

`f(x)=tan^(-1)x-x`, is …………

A

increasing on R

B

decreasing on R

C

increasing on `R^(+)`

D

increasing on `(-oo, 0)`

Text Solution

Verified by Experts

The correct Answer is:

B

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f(x)=2x-tan^(-1)x-log|x+sqrt(1+x^(2))| is ……….. (x in R)

A

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