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The length of the tangent drawn from any...

The length of the tangent drawn from any point on the circle `x ^(2) +y^(2) +2gx+2fy+c_(1) =0` to the circel `x ^(2)+y^(2) +2gx+2fy+c_(2) =0` is-

A

`c_(1) -c_(2)`

B

`c_(2) -c_(1)`

C

`sqrt(c_(2) -c_(1))`

D

`sqrt(c_(1) -c_(2))`

Text Solution

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The correct Answer is:
C
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