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If |z| $\geq$ 5, then least value of $|z - \frac{1}{z}|$ is

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Correct option is B

As |z| ≥ 5, 1z≤15 Now, z−1z≥||z−1|z|=|z|−1|z|≥5−15=245The least value is attained when z = 5.

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If |z| ≥5, then least value of z−1z is

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If |z| $\geq$ 5, then least value of $|z - \frac{1}{z}|$ is