circle

Related Questions

• Circles ${{x}^{2}}+{{y}^{2}}-2x-4y=0$ and ${{x}^{2}}+{{y}^{2}}-8y-4=0$

  ---

• The circle ${{x}^{2}}+{{y}^{2}}-3x-4y+2=0$ cuts x-axis at

  ---

• Radius of circle $(x-5)(x-1)+(y-7)(y-4)=0$ is

  ---

• If the line $lx+my+n=0$ be a tangent to the circle ${{(x-h)}^{2}}+{{(y-k)}^{2}}={{a}^{2}},$ then

  ---

• The equation of a circle passing through origin and co-axial to circles ${{x}^{2}}+{{y}^{2}}={{a}^{2}}$ and ${{x}^{2}}+{{y}^{2}}+2ax=2{{a}^{2}},$ is

  ---