Categories > circle > Tangent and normal to a circle > Length of the tangent drawn from any point on the circle ${{x}^{2}}+{{y}^{2}}+2gx+2fy+{{c}_{1}}=0$ to the circle ${{x}^{2}}+{{y}^{2}}+2gx+2fy+c=0$ is

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Question: Length of the tangent drawn from any point on the circle ${{x}^{2}}+{{y}^{2}}+2gx+2fy+{{c}_{1}}=0$ to the circle ${{x}^{2}}+{{y}^{2}}+2gx+2fy+c=0$ is


1) $\sqrt{{{c}_{1}}-c}$
2) $\sqrt{c-{{c}_{1}}}$
3) $\sqrt{{{c}_{1}}+c}$
4) None of these
Solution: Explanation: No Explanation
Tangent and normal to a circle

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