Complex Numbers And Quadratic Equations question 65
Question: The product of two complex numbers each of unit modulus is also a complex number, of
Options:
A) Unit modulus
B) Less than unit modulus
C) Greater than unit modulus
D) None of these
Show Answer
Answer:
Correct Answer: A
Solution:
If $ |z_1|=1 $ and $ |z_2|=1, $ then $ |z_1z_2|=|z_1||z_2|=1.1=1 $