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 angle between the tangents to the circle ${{x}^{2}}+{{y}^{2}}=169$ at the points (5, 12) and (12, –5), is

  ---

• From three non- collinear points we can draw

  ---

• The locus of the point of intersection of the tangents at the extremities of a chord of the circle ${{x}^{2}}+{{y}^{2}}={{a}^{2}}$ which touches the circle ${{x}^{2}}+{{y}^{2}}=2ax$ is

  ---

• The number of circles touching the line $y-x=0$ and the y-axis is

  ---