circle

Related Questions

• The equation of circle whose centre lies on $3x-y-4=0$ and$x+3y+2=0$ and has an area 154 square units is

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• In the co-axial system of circle ${{x}^{2}}+{{y}^{2}}+2gx+c=0$ , where g is a parameter, if $c>0$ then the circles are

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• The centre and radius of the circle $2{{x}^{2}}+2{{y}^{2}}-x=0$ are

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• The equation of the circle concentric with the circle ${{x}^{2}}+{{y}^{2}}-4x-6y-3=0$ and touching y-axis, is

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• The number of tangents which can be drawn from the point (–1,2) to the circle ${{x}^{2}}+{{y}^{2}}+2x-4y+4=0$ is

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