circle

Related Questions

• The condition of the curves $a{{x}^{2}}+b{{y}^{2}}=1$ and $a'{{x}^{2}}+b'{{y}^{2}}=1$ to intersect each other orthogonally, is

  ---

• The locus of a point which moves such that the sum of the squares of its distances from the three vertices of a triangle is constant, is a circle whose centre is at the

  ---

• Polar of origin (0, 0) with respect to the circle ${{x}^{2}}+{{y}^{2}}+2\lambda x+2\mu y+c=0$ touches the circle ${{x}^{2}}+{{y}^{2}}={{r}^{2}}$ , if

  ---

• The intercept on the line $y=x$ by the circle ${{x}^{2}}+{{y}^{2}}-2x=0$ is AB, equation of the circle on AB as a diameter is

  ---

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

  ---