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Length of tangent drawn from any point o...

Length of tangent drawn from any point on the circle `x^2+y^2+2gx + 2fy +c=0` to the circle :
`x^2+y^2+2gx+2fy+c'=0` is :

A

`c_(1)+c_(2)`

B

`c_(2)-c_(1)`

C

`sqrt(c_(1)^(2)+c_(2)^(2))`

D

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

Text Solution

Verified by Experts

The correct Answer is:
D
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