circle

Related Questions

• The equation of the circle passing through the point (2, 1) and touching y-axis at the origin is

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• The condition that the line $x\cos \alpha +y\sin \alpha =p$ may touch the circle ${{x}^{2}}+{{y}^{2}}={{a}^{2}}$ is

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• The equation of the circle passing through the point $(-1,\ -3)$ and touching the line $4x+3y-12=0$ at the point (3, 0), is

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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 equation of the circle having its centre on the line $x+2y-3=0$ and passing through the points of intersection of the circles ${{x}^{2}}+{{y}^{2}}-2x-4y+1=0$ and ${{x}^{2}}+{{y}^{2}}-4x-2y+4=0$ , is

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