Dividing complex numbers. Complex conjugates.
Understanding i and the complex plane
Dividing Complex Numbers
Introduction to complex numbers. Adding, subtracting and multiplying complex numbers.
Complex Numbers
Multiplying Complex Numbers
Subtracting Complex Numbers
Complex Conjugates
Using exponential form to find complex roots
Extending the path counting to three dimensions
Random logic puzzles and brain teasers. Fun to do and useful for many job interviews!
Do not watch before Blue Forehead Room. THIS IS THE SOLUTION!
Introduction to i and imaginary numbers
2010 IIT JEE Paper 1 Problem 39 Complex Numbers (part 1)
Calculating i raised to arbitrarily high exponents
Turning light bulbs on and off.
Imaginary Roots of Negative Numbers
Separating the truthteller from the togglers!
i as the principal square root of -1
Argand Diagram, magnitude, modulus, argument, exponential form
Complex Roots from the Quadratic Formula
Understanding and solving equations with imaginary numbers. . Conceptual videos and worked examples from basic algebra through algebra 2. Includes videos from the former algebra worked examples playlists.