arg(z-2)=k.arg(z^2-2z)
If mod(z-2)=2, then;
arg(2)=k.arg(2z) [idk if this is correct]
But, mod(z-2)=2
ie. z-2=2 or z-2=-2
Thus, z=4 or 0 but arg(0) is undefined ie. z=4
arg(2)=k.arg(8)
arg(2)=3k.arg(2)
k=1/3
This solution is probably incorrect as I'm rusty with 4u
Gurmies, how did...