circle

Related Questions

• 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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• If ${{g}^{2}}+{{f}^{2}}=c$ , then the equation ${{x}^{2}}+{{y}^{2}}+2gx+2fy+c=0$ will represent

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• If the line $y=\sqrt{3}x+k$ touches the circle ${{x}^{2}}+{{y}^{2}}=16$ , then $k =$

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• Area of the circle in which a chord of length $\sqrt{2}$ makes an angle $\frac{\pi }{2}$ at the centre is

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• The equation of the circle which intersects circles ${{x}^{2}}+{{y}^{2}}+x+2y+3=0$ ,${{x}^{2}}+{{y}^{2}}+2x+4y+5=0$ and ${{x}^{2}}+{{y}^{2}}-7x-8y-9=0$ at right angle, will be

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