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A Tangent PT is drawn to the circle x^2 ...

A Tangent PT is drawn to the circle `x^2 + y^2 =4` at point p(`sqrt(3)`,1). A straight line L perpendicular to PT is a tangent to the circle` (x-3)^2 +y^2=1`
A possible equation of L is

A

`x - sqrt( 3) y =1`

B

` x+ sqrt( 3) y =1`

C

`x - sqrt( 3) y = -1`

D

` x - sqrt( 3) y = 5`

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