Find the equation of the circle with
Centre (-2,3) and radius 4

In the following ,find the equation of the circle with:- centre (-a, -b) and radius sqrt(a^2-b^2) .

In the following ,find the equation of the circle with:-centre (0,2) and radius 2

In the following ,find the equation of the circle with:-centre (1,1) and radius sqrt2

In each of the following find the equation of the circle with centre (1/2, 1/4) and radius 1/12 .

In the following ,find the equation of the circle with:- centre (1/2,1/4) and radius 1/12

Find the equation of the circle with the centre (1/2,1/4) and radius 1/2 .

Find the equation of the circle whose centre is (-3, 2) and radius 4.

A circle of radius 2 lies in the first quadrant and touches both the axes. Find the equation of the circle with centre at (6,5) and touching the above circle externally.