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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

`g^(2)+f^(2)=1`

B

`g^(2)-f^(2)=1`

C

`g^(2)-f^(2)=0`

D

`g^(2)+f^(2)=0`

Text Solution

Verified by Experts

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