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The tangents drawn from the origin to th...

The tangents drawn from the origin to the circle : `x^2+y^2-2gx-2fy+f^2=0` are perpendicular if:

A

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

B

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

C

`p=(q)/(2)`

D

`q=(p)/(2)`

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The correct Answer is:
A
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HIMALAYA PUBLICATION-CIRCLES-QUESTION BANK
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