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If 5 cos^(-1)((1-x^2)/(1+x^2))+7sin^(-1)...

If `5 cos^(-1)((1-x^2)/(1+x^2))+7sin^(-1)((2x)/(1+x^2))-4tan^(-1)((2x)/(1-x^2))-tan^(-1)x=5pi`, then x is equal to

A

3

B

`-sqrt3`

C

`sqrt2`

D

`sqrt3`

Text Solution

Verified by Experts

The correct Answer is:
D
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