Solve for x : cos^(-1)((x^2-1)/(x^2+1))+...

Solve for `x :` `cos^(-1)((x^2-1)/(x^2+1))+1/2tan^(-1)((2x)/(1-x^2))=(2pi)/3`

A

`pi`

B

0

C

`tan^(-1)2`

D

none of these

Verified by Experts

The correct Answer is:

a,c

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