circle

Related Questions

• The two circles ${{x}^{2}}+{{y}^{2}}-4y=0$ and ${{x}^{2}}+{{y}^{2}}-8y=0$

  ---

• The line $lx+my+n=0$ will be a tangent to the circle ${{x}^{2}}+{{y}^{2}}={{a}^{2}}$ iff

  ---

• If the length of tangent drawn from the point (5, 3) to the circle ${{x}^{2}}+{{y}^{2}}+2x+ky+17=0$ be 7, then $k =$

  ---

• The equation of circle which touches the axes of coordinates and the line $\frac{x}{3}+\frac{y}{4}=1$ and whose centre lies in the first quadrant is ${{x}^{2}}+{{y}^{2}}-2cx-2cy+{{c}^{2}}=0$ , where c is

  ---

• The angle between the two tangents from the origin to the circle ${{(x-7)}^{2}}+{{(y+1)}^{2}}=25$ is

  ---