circle

Related Questions

• Equation of the tangent to the circle ${{x}^{2}}+{{y}^{2}}={{a}^{2}}$ which is perpendicular to the straight line $y=mx+c$ is

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• The number of circles touching the line $y-x=0$ and the y-axis 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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• The locus of mid point of the chords of the circle ${{x}^{2}}+{{y}^{2}}-2x-2y-2=0$ which makes an angle of $120{}^\circ $ at the centre is

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• The circle ${{x}^{2}}+{{y}^{2}}+2gx+2fy+c=0$ bisects the circumference of the circle ${{x}^{2}}+{{y}^{2}}+2g'x+2f'y+c'=0$ , if

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