circle

Related Questions

• The radical centre of three circles described on the three sides of a triangle as diameter is

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• Locus of the points from which perpendicular tangent can be drawn to the circle ${{x}^{2}}+{{y}^{2}}={{a}^{2}}$ , is

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• If a circle passes through the point (1, 2) and cuts the circle ${{x}^{2}}+{{y}^{2}}=4$ orthogonally, then the equation of the locus of its centre is

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• The points of intersection of circles ${{x}^{2}}+{{y}^{2}}=2ax$ and ${{x}^{2}}+{{y}^{2}}=2by$ are

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• If the line $lx+my=1$ be a tangent to the circle ${{x}^{2}}+{{y}^{2}}={{a}^{2}}$ , then the locus of the point (l, m) is

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