Find the equation of the circle if the chord of the circle joining (1, 2) and `(-3,1)` subtents `90^0` at the center of the circle.

The equation of the circle C with center at (√3,1) is

Find the equation of the circle with center (-3,2) and radius 4

Find the equation of the circle with center (−3,2) and radius 4

The equation of the circle whose diameter is common chord to the circles

Find the equation of the circle on the line joining the points (-2,3) and (1,-2) as diameter.

Find the equation of the circle with the line joining (2,3) and (-2,-1) as diameter. Find the equation of the tangent at the point (2,3) to this circle.

Find the equation of a circle with center (4,3) touching the circle x^(2)+y^(2)=1

Find the equation of a circle with center (4, 3) touching the circle x^2+y^2=1

Find the equation of a circle with center (4, 3) touching the circle x^2+y^2=1