1. What does the modulus of a complex number represent in the complex plane?
2. What is the complex conjugate of -2 + 3i?
3. What is the sum of the four fourth roots of unity?
Complex number — modulus?
Distance from origin in plane.
Complex number — argument?
Angle with positive real axis.
Complex conjugate — change?
Sign of imaginary part.
Polar form — components?
Modulus and argument.
Cube roots of unity — sum?
−1.
Fourth roots of unity — product?
1.
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