If $a$ is a complex number $a\neq 0$. Under that conditions $|a|\leq |a+z|$ with $z$ complex number?
That condition is equivalent to $d(a,0) \le d(a,-z)$. Time to draw a picture and see what is happening.
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
3 years ago
Get the weekly newsletter!
see an example newsletter