Complex Numbers and Their Operations

Complex Numbers and Their Operations

Assessment

Interactive Video

Mathematics

9th - 10th Grade

Hard

Created by

Thomas White

FREE Resource

The video tutorial covers various operations on complex numbers, including addition, multiplication, conjugation, magnitude calculation, and angle computation. It demonstrates these operations using specific examples with complex numbers Z1 and Z2. The tutorial also explains how to express complex numbers in polar format and concludes with a brief introduction to performing these operations in MATLAB.

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37 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in adding two complex numbers?

Subtract the imaginary parts

Divide the imaginary parts

Multiply the real parts

Add the real parts

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of adding the complex numbers Z1 = 7 + j4 and Z2 = -2 + j1.5?

9 + j3.5

5 + j5.5

9 + j5.5

5 + j3.5

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the real part of the complex number Z1?

7

-2

1.5

4

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the imaginary part of the complex number Z2?

1.5

-2

7

4

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the imaginary part of the complex number Z1?

7

-2

1.5

4

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the real part of the complex number Z2?

-2

7

4

1.5

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What method is used to multiply two complex numbers?

FOIL method

Cross multiplication

Matrix multiplication

Vector multiplication

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