Find the differential equation of system of concentric circles with centre (1, 2).
To find: Differential equation of concentric circles whose center is (1,2)
Equation of the curve is given by
(x-a)2+(y-b)2=k2
Where (a,b) is the center and k, radius.
Subsitute the values now,
(x-1)2+(y-2)2=k2
Differentiate with respect to x