A) \[z\] is a pure real number
B) \[|z|=1\]
C) \[z\]is a pure imaginary number
D) \[z=1\]
Correct Answer: B
Solution :
Given that \[\overline{z}=\frac{1}{z}\Rightarrow z\overline{z}=1\] Þ \[|z{{|}^{2}}=1\Rightarrow |z|=1\]
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