circle

Related Questions

• The gradient of the normal at the point (–2, –3) on the circle ${{x}^{2}}+{{y}^{2}}+2x+4y+3=0$ is

  ---

• The equations of the tangents to the circle ${{x}^{2}}+{{y}^{2}}=50$ at the points where the line $x+7=0$ meets it, are

  ---

• The equation of the circle through the point of intersection of the circles ${{x}^{2}}+{{y}^{2}}-8x-2y+7=0$ , ${{x}^{2}}+{{y}^{2}}-4x+10y+8=0$ and (3, –3) is

  ---

• If $(\alpha ,\beta )$ is the centre of a circle passing through the origin, then its equation is

  ---

• If the straight line $4x+3y+\lambda =0$ touches the circle $2({{x}^{2}}+{{y}^{2}})=5$ , then $\lambda $ is

  ---