MCQ
If z is a complex number, then:
- A$|\text{z}|^2>|\text{z}|^2$
- B$|\text{z}|^2=|\text{z}|^2$
- C$|\text{z}|^2<|\text{z}|^2$
- D$|\text{z}|^2\geq|\text{z}|^2$
✓
Answer
- $|\text{z}|^2=|\text{z}|^2$
Solution:
It is obvious that, for any complex number z,
$|\text{z}|^2=|\text{z}|^2$
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