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A point on the line x = 3 from which the...

A point on the line x = 3 from which the tangents drawn to the circle ` x^(2) + y^(2) = 8` are at right angles is

A

`(3 , pm sqrt(7))`

B

`(3, pm sqrt(23))`

C

`(pm 3, sqrt(7))`

D

`(pm 3, sqrt(23))`

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The correct Answer is:
A
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