
Complex Number Operations and Properties

Interactive Video
•
Mathematics
•
9th - 10th Grade
•
Hard

Liam Anderson
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the moduli when two complex numbers are multiplied?
They are multiplied together.
They remain unchanged.
They are subtracted from each other.
They are added together.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a complex number with modulus 2 is multiplied by another complex number, what happens to the length of the resulting vector?
It becomes three times as long.
It becomes half as long.
It becomes twice as long.
It remains the same length.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do the arguments of two complex numbers interact when they are multiplied?
They are subtracted.
They are divided.
They are added.
They remain unchanged.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the effect of adding arguments in complex number multiplication?
It stretches the vector.
It flips the vector.
It rotates the vector.
It causes the vector to shrink.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When visualizing complex number multiplication, what does the new vector represent?
A vector with the same length but different direction.
A vector with a different length but same direction.
A vector with a different length and direction.
A vector with the same length and direction.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why are quote marks used around the vector p in the illustration?
To indicate it is a different vector.
To denote it is a temporary vector.
To show it has the same magnitude but different direction.
To highlight it is the same vector.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the magnitude of a vector when multiplied by -1?
It doubles.
It halves.
It stays the same.
It becomes zero.
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