General Equation of Circle When the circle touch x axis and y axis .

General Equation of Circle When the circle touches both the axis.

If the circle S=0 touches X -axis then

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

The differential equation of the system of circles touching the y axis at origin is

The differential equations of all circles touching the x-axis at origin is

Find the equations of the circles touching y - axis at (0,3) and making an intercept of 8 units on the x-axis.

The differential equation of the system of circles touching the y-axis at the origin is

Equation of circle centred at (2,0) , and touching Y-axis is