circle

Related Questions

• Length of the common chord of the circles ${{x}^{2}}+{{y}^{2}}+5x+7y+9=0$ and ${{x}^{2}}+{{y}^{2}}+7x+5y+9=0$ is

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• The gradient of the tangent line at the point $(a\cos \alpha ,a\sin \alpha )$ to the circle ${{x}^{2}}+{{y}^{2}}={{a}^{2}}$ , is

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• If the vertices of a triangle be $(2,\ -2)$ , $(-1,\ -1)$ and (5, 2), then the equation of its circumcircle is

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• The centre of circle inscribed in square formed by the lines ${{x}^{2}}-8x+12=0$ and ${{y}^{2}}-14y+45=0$ , is

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• If a circle passes through the point (0, 0), (a, 0), (0, b), then its centre is

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