circle

Related Questions

• If the line $3x-4y=\lambda $ touches the circle ${{x}^{2}}+{{y}^{2}}-4x-8y-5=0$ , then $\lambda $ is equal to

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• The common chord of the circle ${{x}^{2}}+{{y}^{2}}+4x+1=0$ and ${{x}^{2}}+{{y}^{2}}+6x+2y+3=0$ is

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• The equation of the circle which touches both the axes and whose radius is a, is

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• The condition that the circle ${{(x-3)}^{2}}+{{(y-4)}^{2}}={{r}^{2}}$ lies entirely within the circle ${{x}^{2}}+{{y}^{2}}={{R}^{2}},$ is

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• The number of circles touching the line $y-x=0$ and the y-axis is

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