circle

Related Questions

• If the centre of a circle which passing through the points of intersection of the circles ${{x}^{2}}+{{y}^{2}}-6x+2y+4=0$ and ${{x}^{2}}+{{y}^{2}}+2x-4y-6=0$ is on the line $y=x$ , then the equation of the circle is

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• Equation of radical axis of the circles ${{x}^{2}}+{{y}^{2}}-3x-4y+5=0$ , $2{{x}^{2}}+2{{y}^{2}}-10x$ $-12y+12=0$ is

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• If the straight line $4x+3y+\lambda =0$ touches the circle $2({{x}^{2}}+{{y}^{2}})=5$ , then $\lambda $ is

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• The angle between the tangents from $(\alpha ,\beta )$ to the circle ${{x}^{2}}+{{y}^{2}}={{a}^{2}}$ , is

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• The radius of the circle, having centre at (2,1) whose one of the chord is a diameter of the circle ${{x}^{2}}+{{y}^{2}}-2x-6y+6=0$ is

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