
Re: Let Z be a complex number.
Posted:
Oct 27, 2013 4:48 AM


> > Are you sure of "> 2"? >
sqr((x + 1)^2 + y^2) > 2 can be rewritten as ((x + 1)^2 + y^2) > 4 , <=> x^2 + 2x + 1 +y^2 > 4 <=> x^2 +2x + y^2 > 3 which is what we've started with. The same goes for the other relation.

