circle

Related Questions

• The equations of the tangents drawn from the point (0, 1) to the circle ${{x}^{2}}+{{y}^{2}}-2x+4y=0$ are

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• The locus of the centres of the circles which touch externally the circles ${{x}^{2}}+{{y}^{2}}={{a}^{2}}$ and ${{x}^{2}}+{{y}^{2}}=4ax$ , will be

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• The locus of the centre of a circle which touches externally the circle ${{x}^{2}}+{{y}^{2}}-6x-6y+14=0$ and also touches the y-axis, is given by the equation

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• At which point on y-axis the line $x=0$ is a tangent to circle ${{x}^{2}}+{{y}^{2}}-2x-6y+9=0$

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• If the two circles $2{{x}^{2}}+2{{y}^{2}}-3x+6y+k=0$ and ${{x}^{2}}+{{y}^{2}}-4x+10y+16=0$ cut orthogonally, then the value of k is

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