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Tutorial - Learn how to multiply three imaginary numbers together to simplify the expression ex 18

Tutorial - Learn how to multiply three imaginary numbers together to simplify the expression ex 18

Assessment

Interactive Video

Mathematics

11th Grade - University

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

The video tutorial demonstrates how to multiply three complex numbers by treating them like monomials. It involves multiplying the real parts and the imaginary parts separately. The tutorial explains the properties of imaginary numbers, specifically focusing on I cubed, which equals negative I. The final result is a positive complex number after simplifying the expression.

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5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in multiplying complex numbers as described in the video?

Divide the real parts by the imaginary parts

Subtract the imaginary parts

Multiply the real parts and imaginary parts separately

Add the real parts together

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of multiplying 12 by 2 and then by 4?

48

24

192

96

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the value of i squared?

-i

-1

i

1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is i cubed calculated?

i times i times i

i times 1

i times i

i times -1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the final result of multiplying the given complex numbers?

-96i

96i

-96

96

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