If |z − 3| ≤ 1, then |z + 4i| ≤ 6. (Hint: try adding 0 - -3 +3 inside the expression; this is a common trick.) If |z −
Posted: Thu Jun 30, 2022 7:34 pm
If |z − 3| ≤ 1, then |z + 4i| ≤ 6. (Hint: try adding 0 - -3 +3 inside the expression; this is a common trick.)
If |z − 1| ≤ 1, then |1 / (z − 4)| ≤ 1/2.