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If: cos(2.tan^(-1)x)=1/2, then: x=...

If: `cos(2.tan^(-1)x)=1/2`, then: x=

A

`sqrt(3)`

B

`1/sqrt(3)`

C

`1-sqrt(3)`

D

`1-1/sqrt(3)`

Text Solution

Verified by Experts

The correct Answer is:
B
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