Master Adding and Subtracting Complex Numbers

Master Adding and Subtracting Complex Numbers

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

Created by

Quizizz Content

FREE Resource

The video tutorial explains how to add and subtract complex numbers, which consist of real and imaginary parts. It emphasizes the importance of combining like terms, similar to polynomial operations. The tutorial covers examples of adding imaginary numbers, mixing real and imaginary numbers, and distributing negatives in complex expressions. It concludes with techniques for handling addition and subtraction of complex numbers.

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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the two components of a complex number?

Real and rational parts

Real and imaginary parts

Imaginary and irrational parts

Rational and irrational parts

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When adding complex numbers, what should you do with the coefficients of the imaginary parts?

Multiply them

Subtract them

Add them

Divide them

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the expression (5 + 2 - 3i), what is the result of adding the real numbers?

7

2

3

5

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How should you handle a negative sign outside parentheses when subtracting complex numbers?

Multiply it by the terms inside

Add it to the terms inside

Distribute it to each term inside

Ignore it

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of combining 6i and -2i?

6i

8i

2i

4i

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the correct format for writing complex numbers?

bi - a

a - bi

bi + a

a + bi

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the expression 3 - 2 - i + 7i, what is the result of combining the imaginary terms?

6i

5i

7i

4i