In the line 3x-y= k is a tangent to th...

In the line ` 3x-y= k ` is a tangent to the hyperbola ` 3x^(2) -y^(2) =3 `,then k =

A

`pm sqrt7`

B

`pm sqrt3`

C

`pm sqrt5`

D

`pm sqrt6`

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The correct Answer is:

D

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