• #### Finding the Roots of a Complex Number - Problem 1

##### Math›Precalculus›Polar Coordinates and Complex Numbers
How to use DeMoivre's Theorem to compute the fourth roots of a complex number, 16 and -16.
• #### More Roots of Complex Numbers - Problem 3

##### Math›Precalculus›Polar Coordinates and Complex Numbers
How to find the nth roots of unity.
• #### Finding the Roots of a Complex Number - Concept

##### Math›Precalculus›Polar Coordinates and Complex Numbers
How to use DeMoivre's Theorem to compute the cube roots of a complex number.
• #### More Roots of Complex Numbers - Problem 1

##### Math›Precalculus›Polar Coordinates and Complex Numbers
How to use four guidelines to find the sixth roots of a complex number, and how to identify the geometric properties of the roots.
• #### More Roots of Complex Numbers - Problem 2

##### Math›Precalculus›Polar Coordinates and Complex Numbers
How to use four guidelines to find the fifth roots of a complex number.
• #### Finding the Roots of a Complex Number - Problem 2

##### Math›Precalculus›Polar Coordinates and Complex Numbers
How to use DeMoivre's Theorem to compute the square roots of i.
• #### Finding the Roots of a Complex Number - Problem 3

##### Math›Precalculus›Polar Coordinates and Complex Numbers
How to use DeMoivre's Theorem and the half-angle formulas to compute the cube roots of a complex number, 7+24*i.
• #### More Roots of Complex Numbers - Concept

##### Math›Precalculus›Polar Coordinates and Complex Numbers
How to find the roots of a complex number quickly using four simple guidelines.
• #### Introduction to Imaginary Numbers - Concept

How to define an imaginary number.
• #### Introduction to Imaginary Numbers - Problem 1

How to simplify a radical using imaginary numbers.
• #### Introduction to Imaginary Numbers - Problem 2

How to define a complex number.
• #### Dividing Complex Numbers - Problem 7

Rationalizing denominators where there is a root of a negative number, meaning we'll likely have an imaginary result.
Tags:
• #### Multiplying Complex Numbers - Concept

How to multiply imaginary numbers.
• #### Multiplying Complex Numbers - Problem 1

How to multiply an imaginary number by a complex number.
• #### Dividing Complex Numbers - Concept

How to rationalize the denominator when dealing with an imaginary number.
• #### Dividing Complex Numbers - Problem 2

How to rationalize the denominator when dealing with a complex number.
• #### Multiplying Complex Numbers - Problem 2

How to multiply two complex numbers.
• #### Dividing Complex Numbers - Problem 1

How to rationalize the denominator when dealing with an imaginary number.
• #### Adding and Subtracting Complex Numbers - Concept

How to add and subtract complex numbers.