Derivative of y=sec^-1(1/(2x^2-1)) is...

Derivative of `y=sec^-1(1/(2x^2-1))` is

A

`(dy)/(dx) = (sqrt(1 - x^2))/(2) , x != +- 1`

B

`(dy)/(dx) = (-2)/(sqrt(1 - x^2)) , x != +- 1`

C

`(dy)/(dx) = (2)/(sqrt(1 - x^2)) , x != +- 1`

D

None of these

Verified by Experts

The correct Answer is:

B

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