circle

Related Questions

• The locus of a point which moves so that the ratio of the length of the tangents to the circles ${{x}^{2}}+{{y}^{2}}+4x+3=0$ and ${{x}^{2}}+{{y}^{2}}-6x+5=0$ is $2:3$ is

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• The pole of the straight line $x+2y=1$ with respect to the circle ${{x}^{2}}+{{y}^{2}}=5$ is

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• The locus of the centre of circle which cuts the circles ${{x}^{2}}+{{y}^{2}}+4x-6y+9=0$ and ${{x}^{2}}+{{y}^{2}}-4x+6y+4=0$ orthogonally is

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• The area of the curve ${{x}^{2}}+{{y}^{2}}=2ax$ is

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• The line $ax+by+c=0$ is a normal to the circle ${{x}^{2}}+{{y}^{2}}={{r}^{2}}$ . The portion of the line $ax+by+c=0$ intercepted by this circle is of length

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