Question

If z = a - ib , then |z| is

Answer 1

Answer on Questions #58290 – Math – Complex Analysis

Question

If $= a - bi$, then $|z|$ is

Solution

$$|z| = \sqrt{a^2 + (-b)^2} = \sqrt{a^2 + b^2}.$$

Answer: $|z| = \sqrt{a^2 + b^2}$.

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