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The equations of the tangents drawn from...

The equations of the tangents drawn from the origin to the circle `x^2 + y^2 - 2px - 2qy + q^2 = 0` are perpendicular if (A) `p^2 = q^2` (B) `p^2 = q^2 =1` (C) `p = q/2` (D) `q= p/2`

A

`p ^(2) + q ^(2) =1`

B

`p ^(2) -q ^(2) =1`

C

`p ^(2) - q ^(2) =0`

D

none of these

Text Solution

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The correct Answer is:
C
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