circle

Related Questions

• Circles ${{(x+a)}^{2}}+{{(y+b)}^{2}}={{a}^{2}}$ and ${{(x+\alpha )}^{2}}$ $+{{(y+\beta )}^{2}}=$ ${{\beta }^{2}}$ cut orthogonally, if

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• The equation of radical axis of the circles ${{x}^{2}}+{{y}^{2}}+x-y+2=0$ and $3{{x}^{2}}+3{{y}^{2}}-4x-12=0,$ is

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• The number of circle having radius 5 and passing through the points (– 2, 0) and (4, 0) is

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• The equation of the circle with centre at (1, –2) and passing through the centre of the given circle ${{x}^{2}}+{{y}^{2}}+2y-3=0$ , 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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