Complex Numbers

the circle $x^2+y^2-3 x-2 y=0$.

the arc of the circle $x^2+y^2-3 x-2 y=0$ intercepted by the diameter $2 x+3 y-6=0$ containing the origin and excluding the points $(3,0)$ and $(0,2)$.

the arc of the circle $x^2+y^2-3 x-2 y=0$ intercepted by the diameter $2 x+3 y-6=0$ not containing the origin and excluding the points $(3,0)$ and $(0,2)$.

the circle $x^2+y^2-3 x-2 y=0$ not containing the point $(0,2)$.