circle

Related Questions

• A circle passes through (0, 0) and (1, 0) and touches the circle ${{x}^{2}}+{{y}^{2}}=9$ , then the centre of circle is

  ---

• If one end of the diameter is (1, 1) and other end lies on the line $x+y=3$ , then locus of centre of circle is

  ---

• The radical centre of the circles ${{x}^{2}}+{{y}^{2}}+4x+6y=19,{{x}^{2}}+{{y}^{2}}=9$ and ${{x}^{2}}+{{y}^{2}}-2x-2y=5$ will be

  ---

• Equation of radical axis of the circles ${{x}^{2}}+{{y}^{2}}-3x-4y+5=0$ , $2{{x}^{2}}+2{{y}^{2}}-10x$ $-12y+12=0$ is

  ---

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

  ---