# Complex needs to judged

Algebra Level 3

If $$z_1$$ and $$z_2$$ are two complex natural numbers such that

$| z_1 | < 1 < | z_2 |,$

then what can we say about the value of

$\left | \frac{ 1 - z_1 \bar{ z_2} } { z_2 - z_2} \right|$

(Calvin edit: It is not clear what "complex natural numbers" means. I believe that is should just be "complex numbers".)

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