Exploring Operations with Complex Numbers

Exploring Operations with Complex Numbers

Assessment

Interactive Video

Created by

Amelia Wright

Mathematics

8th - 12th Grade

4 plays

Hard

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main focus of this tutorial?

Operations on complex numbers

Solving quadratic equations

Graphing linear equations

Understanding real numbers

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you add the complex numbers Z1 = 3 + 2i and Z2 = 4 - 3i?

7 + 5i

7 - i

1 - i

1 + 5i

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of subtracting Z2 from Z1, where Z1 = 3 + 2i and Z2 = 4 - 3i?

-1 - 5i

1 + 5i

1 - 5i

-1 + 5i

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of multiplying Z1 = 3 + 2i by 5?

15 + 10i

10 + 15i

5 + 6i

6 + 5i

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the value of i^2?

-i

i

-1

1

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of multiplying Z1 = 3 + 2i by Z2 = 4 - 3i?

18 + i

18 - i

12 + i

12 - i

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the value of i^3?

-i

1

i

-1

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the value of i^4?

1

-1

-i

i

9.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of 2i^8 - 3i^2?

9

-9

-11

11

10.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which method is suggested for expanding (3 - 2i)^4?

Binomial expansion

Graphical method

Long multiplication

Synthetic division

Explore all questions with a free account

or continue with
Microsoft
Apple
Others
By signing up, you agree to our Terms of Service & Privacy Policy
Already have an account?