
Complex Numbers and Their 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 determines the identity of two complex numbers?
Their magnitude
Their real and imaginary components
Their phase angle
Their modulus
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the given problem, what are the unknowns referred to as?
m and n
p and q
x and y
a and b
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in solving the given complex number problem?
Calculating the phase angle
Using polar coordinates
Equating the real and imaginary parts
Finding the modulus
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of expanding the expression (1 + 4i)(2 - i)?
8 + 2i
7 + 6i
6 + 7i
5 + 3i
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the two methods mentioned for solving simultaneous equations?
Substitution and elimination
Graphical and numerical
Matrix and determinant
Integration and differentiation
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it not advisable to substitute an equation into itself?
It leads to complex solutions
It results in trivial identities
It increases the number of variables
It requires more equations
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the notation used for a complex conjugate?
z*
z bar
z'
z~
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