Should have for the above.Originally Posted by kingkaisai2
You should be able to do the above now.Sketch and argand diagram showing the point representing the complex number u.
I presume that this last should be , which is a circleShow on the same diagram the locus of the complex number z such that [z-u]=2. Give a thorough description would be good.
of radius centred at .
This is now just a bit of geometry (look like orFind the greatest value of argument.
to me, but I haven't checked in detail)