circle

Related Questions

• The equation ${{x}^{2}}+{{y}^{2}}+4x+6y+13=0$ represents

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• The point of contact of the tangent to the circle ${{x}^{2}}+{{y}^{2}}=5$ at the point (1, –2) which touches the circle ${{x}^{2}}+{{y}^{2}}-8x+6y+20=0$ , is

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• The slope of the tangent at the point $(h,h)$ of the circle ${{x}^{2}}+{{y}^{2}}={{a}^{2}}$ is

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• The equation of the circle which passes through the points (2, 3) and (4, 5) and the centre lies on the straight line $y-4x+3=0$ , is

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• Radius of the circle ${{x}^{2}}+{{y}^{2}}+2x\cos \theta $ $+2y\sin \theta -8=0$ , is

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