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1. Equations & Inequalities

Complex Numbers

1. Equations & Inequalities

Complex Numbers

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Introduction to Complex Numbers

Introduction to Complex Numbers

Adding and Subtracting Complex Numbers

Adding and Subtracting Complex Numbers

Multiplying Complex Numbers

Multiplying Complex Numbers

Complex Conjugates

Complex Conjugates

Dividing Complex Numbers

Dividing Complex Numbers

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Practice this topic

Multiple Choice
Identify the real and imaginary parts of each complex number. $-4-9i$
Multiple Choice
Identify the real and imaginary parts of each complex number. $3+2i\sqrt3$
Multiple Choice
Write the complex number in standard form. $\frac{9+\sqrt{-16}}{3}$
Multiple Choice
Find the difference. Express your answer in standard form. $\left(2+8i\right)-\left(4-i\right)$
Open Question
In Exercises 1–8, add or subtract as indicated and write the result in standard form.(7 + 2i) + (1 - 4i)
Open Question
In Exercises 1–8, add or subtract as indicated and write the result in standard form.(3 + 2i) - (5 - 7i)
Open Question
In Exercises 1–8, add or subtract as indicated and write the result in standard form.6 - (- 5 + 4i) - (- 13 - i)
Open Question
Decide whether each statement is true or false. If false, correct the right side of the equation. √-25 = 5i

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