Find the equation of the circle which passes through (1, 0) and (0, 1) and has its radius as small as possible.

The equation of the circle which passes through (1,0) and (0,1) and has its radius as small as possible,is

Find the equation of a sphere which passes through (1,0,0)(0,1,0) and (0,0,1) and has radius as small as possible.

The equation ofa circle which passes through (1,2) and (2,1) and whose radius is 1 units is

The equation of the circle passing through (2,0) and (0,4) and having minimum radius is

Find the equation of the sphere which passes through the point (1,0,0),(0,1,0) and (0,0,1) and has its radius as small as possible.

Find the equation of the circle which passes through the points (3,-2),(-1,6) and whose radius is 10.

Find the equation of the cirrle passing through (1,0) and (0,1) and having the smallest possible radius.

Find the equation of the circle which passes through the points (1, 3 ) and (2, - 1 ) , and has its centre on the line 2x + y - 4 = 0