Form the differential equation of circles touching the x-axis at origin:

Form the differential equation of the circles touching the x-axis at orgin.

The differential equations of all circle touching the x-axis at orgin is (a) (y^(2)-x^(2))=2xy((dy)/(dx)) (b) (x^(2)-y^(2))(dy)/(dx)=2xy ( c ) (x^(2)-y^(2))=2xy((dy)/(dx)) (d) None of these

Form the differential equation of the family of circles touching the y- axis at origin.

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

The differential equation of all circles passing through the origin and having their centres on the x - axis is :

The differential equation of all circles which pass through origin and whose centres lie on y - axis is :

The differential equations of all conics having centre at te origin is of order :

The equation of the circle touching the y -axis at the origin and passing through (b, c) is