circle

Related Questions

• Which of the following line is a diameter of the circle ${{x}^{2}}+{{y}^{2}}-6x-8y-9=0$

  ---

• If the line $y=mx+c$ be a tangent to the circle ${{x}^{2}}+{{y}^{2}}={{a}^{2}}$ , then the point of contact is

  ---

• If the coordinates of one end of the diameter of the circle ${{x}^{2}}+{{y}^{2}}-8x-4y+c=0$ are (–3, 2), then the coordinates of other end are

  ---

• The equation of the circle passing through the points (0, 0), (0, b) and (a, b) is

  ---

• The line $lx+my+n=0$ is normal to the circle ${{x}^{2}}+{{y}^{2}}+2gx+2fy+c=0$ , if

  ---