12 Videos for "imaginary number"

Introduction to Imaginary Numbers  Concept
Math › Algebra 2 › Roots and Radicals
How to define an imaginary number. 
Introduction to Imaginary Numbers  Problem 1
Math › Algebra 2 › Roots and Radicals
How to simplify a radical using imaginary numbers. 
Introduction to Imaginary Numbers  Problem 2
Math › Algebra 2 › Roots and Radicals
How to define a complex number. 
Multiplying Complex Numbers  Concept
Math › Algebra 2 › Roots and Radicals
How to multiply imaginary numbers. 
Multiplying Complex Numbers  Problem 1
Math › Algebra 2 › Roots and Radicals
How to multiply an imaginary number by a complex number. 
Dividing Complex Numbers  Concept
Math › Algebra 2 › Roots and Radicals
How to rationalize the denominator when dealing with an imaginary number. 
Dividing Complex Numbers  Problem 1
Math › Algebra 2 › Roots and Radicals
How to rationalize the denominator when dealing with an imaginary number. 
The Complex Plane  Concept
Math › Precalculus › Polar Coordinates and Complex Numbers
How to plot complex numbers on the complex plane. 
Using the Conjugate Zeros Theorem  Concept
Math › Precalculus › Polynomial and Rational Functions
How we find the zeros of a polynomial function when one imaginary zero is known. 
Using the Conjugate Zeros Theorem  Problem 1
Math › Precalculus › Polynomial and Rational Functions
How we find the zeros of a quartic (4th degree polynomial) function when one imaginary zero is known. 
Using the Conjugate Zeros Theorem  Problem 3
Math › Precalculus › Polynomial and Rational Functions
How we find the zeros of a quintic (5th degree polynomial) function when two imaginary zeros are known. 
Using the Conjugate Zeros Theorem  Problem 2
Math › Precalculus › Polynomial and Rational Functions
How we find the zeros of a quartic (4th degree polynomial) function when one imaginary zero is known.