circle

Related Questions

• Through which of the following pairs of points does the circle ${{x}^{2}}+{{y}^{2}}-12x+1=0$ pass

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• Radical axis of the circles $3{{x}^{2}}+3{{y}^{2}}-7x+8y+11=0$ and ${{x}^{2}}+{{y}^{2}}-3x-4y+5=0$ is

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• The centre of a circle is (2, –3) and the circumference is $10\pi $ . Then the equation of the circle is

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• If the line y $\cos \alpha =x\sin \alpha +a\cos \alpha $ be a tangent to the circle ${{x}^{2}}+{{y}^{2}}={{a}^{2}}$ , then

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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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