plz help plz help

Question

if z=x+jy,show that the locus arg{(z-1)/(z)}=pi/6 is a circle.find its centre and radius

Answer 1

This should help you out:

http://math.stackexchange.com/questions/1154727/how-to-find-the-locus-of-points-in-the-argand-plane-represented-as-follows