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Show that the length of the tangent from...

Show that the length of the tangent from anypoint on the circle : `x^2 + y^2 + 2gx+2fy+c=0` to the circle `x^2+y^2+2gx+2fy+c_1 = 0` is `sqrt(c_1 -c)`.

Text Solution

Verified by Experts

The correct Answer is:
`=sqrt((-c+c_(1)))=sqrt((c_(1)-c))" "` [From Eq. (i)]
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