circle

Related Questions

• The two circles ${{x}^{2}}+{{y}^{2}}-2x-3=0$ and ${{x}^{2}}+{{y}^{2}}-4x-6y-8=0$ are such that

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• Centre of the circle ${{(x-3)}^{2}}+{{(y-4)}^{2}}=5$ is

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• If a circle passes through the points of intersection of the coordinate axis with the lines $\lambda x-y+1=0$ and $x-2y+3=0$ , then the value of $\lambda $ is

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• If OA and OB are the tangents from the origin to the circle ${{x}^{2}}+{{y}^{2}}+2gx+2fy+c=0$ and C is the centre of the circle, the area of the quadrilateral $OACB$ is

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• The locus of the middle points of those chords of the circle ${{x}^{2}}+{{y}^{2}}=4$ which subtend a right angle at the origin is

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