Find the differential equation of all the circles touching the x-axis at origin.

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

Find the differential equation of all straight lines touching the circle x^2+y^2=1 .

a)Equation of family of circles touching the y -axis at origin is x^2+y^2-2 a x=0 Find the differential equation of all circles b) Solve the differential equation (1+x^2) (dy)/(dx)+y=tan ^-1x

Form the DE of the family of circles touching the x-axix at origin.

Form the differential equation of the family of parabolas having vertex at origin and axis along positive y-axis.

Classify the following sets : Set of all concentric circles touching the x-axis at the origin.

Form the differential equation of the family of circles in the first quadrant which touch the coordinate axes.

Form a 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 in the second quadrant and touching the coordinate axes.