What is the imaginary unit 'i' defined as?

Complex Numbers and Their Properties

Interactive Video
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Mathematics
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9th - 10th Grade
•
Hard

Thomas White
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11 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The square root of 2
The square root of 0
The square root of 1
The square root of -1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is a complex number typically represented?
X + Yi
X * Yi
X + Y
X - Yi
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the Argand diagram represent?
A set of complex numbers
A set of real numbers
A set of rational numbers
A set of imaginary numbers
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the Argand diagram, what does the horizontal axis represent?
Imaginary part
Real part
Magnitude
Direction
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the magnitude of a complex number calculated?
x * y
x - y
x + y
Square root of x^2 + y^2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the polar form of a complex number?
R - θ
X - Yi
R(cosθ + i sinθ)
X + Yi
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the exponential form of a complex number?
e^(iθ)
X + Yi
R - θ
R(cosθ + i sinθ)
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