Find the differential equation of the family of circles whose centres lie on `X`-axis.

The differential equation of family of circles whose centre lies on x-axis, is

Find the differential equation of those circles whose centres lie on X -axis and whose radii are variable 'r' .

Find the differential equation of those circles whose centres lie on X -axis and whose radii are variable 'r' .

Find the differential equation of the family of circles with their centre at the origin.

Find the differential equation of the family of circles having their centres on the line y=10 and touching the X axis.

Form the differential equation of the family of circles having centre on the x-axis and passing through the origin .

Form the differential equation of the family of circles having centre on y - axis and radius 3 units.

Form the differential equation of the family of circles having centre on y-axis and radius 3 units.

Form the differential equation of the family of circles having centre on y - axis and radius 3 units.