circle

Related Questions

• 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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• The number of common tangents to two circles ${{x}^{2}}+{{y}^{2}}=4$ and ${{x}^{2}}-{{y}^{2}}-8x+12=0$ is

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• The centre of the circle $x=2+3\cos \theta $ , $y=3\sin \theta -1$ is

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• If the straight line $y=mx$ is outside the circle ${{x}^{2}}+{{y}^{2}}-20y+90=0$ , then

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• Middle point of the chord of the circle ${{x}^{2}}+{{y}^{2}}=25$ intercepted on the line $x-2y=2$ is

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