circle

Related Questions

• The equations of the tangents to the circle ${{x}^{2}}+{{y}^{2}}=36$ which are inclined at an angle of ${{45}^{o}}$ to the x-axis are

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• The number of common tangents to the circles ${{x}^{2}}+{{y}^{2}}=1$ and ${{x}^{2}}+{{y}^{2}}-4x+3=0$ is

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• The locus of the centre of the circle which cuts off intercepts of length $2a$ and $2b$ from x-axis and y-axis respectively, is

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• A line $lx+my+n=0$ meets the circle ${{x}^{2}}+{{y}^{2}}={{a}^{2}}$ at the points P and Q. The tangents drawn at the points P and Q meet at R, then the coordinates of R is

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• The centre of the circle, which cuts orthogonally each of the three circles ${{x}^{2}}+{{y}^{2}}+2x+17y+4=0,$ ${{x}^{2}}+{{y}^{2}}+7x+6y+11=0,$ ${{x}^{2}}+{{y}^{2}}-x+22y+3=0$ is

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