a.) Find the equations of the circles (if any) where the sphere (x-1)^2+(y+3)^2+(z-2)^2=4 intersects each coordinate plane.
b.)Find the points (if any) where this sphere intersects each coordinate axis.
The Attempt at a Solution
a.) The sphere intersects the y-z plane so x=0. So the equation would be (y+3)^2+(z-2)^2=4?
b.) I'm not sure how to begin. Please help