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Tangents PT1, and PT2, are drawn from a ...

Tangents `PT_1, and PT_2`, are drawn from a point P to the circle `x^2 +y^2=a^2`. If the point P line `Px +qy + r = 0`, then the locus of the centre of circumcircle of the triangle `PT_1T_2` is

A

`px+qy=r//2`

B

`2px+2py+r=0`

C

`px+qy=r`

D

`(x-p)^(2)+(y-q)^(2)=r^(2)`

Text Solution

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The correct Answer is:
A
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