circle

Related Questions

• 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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• 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 equation of the circle which passes through (1, 0) and (0, 1) and has its radius as small as possible, is

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• The equation of the circle having the lines ${{x}^{2}}+2xy+3x+6y=0$ as its normals and having size just sufficient to contain the circle $x(x-4)+y(y-3)=0$ is

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• The equations of the tangents to circle $5{{x}^{2}}+5{{y}^{2}}=1$ , parallel to line $3x+4y=1$ are

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