Instructional Video8:21
msvgo

Addition and Subtraction of Complex Numbers

K - 12th
It explains how to add and subtract two complex numbers. It also shows the graphical representation of sum and difference of two complex numbers.
Instructional Video21:00
msvgo

Polar Form of Complex Numbers

K - 12th
It introduces the concept of principal Argument and the polar form of complex numbers. It also explains conversion from cartesian to Polar Form and vice versa.
Instructional Video11:53
Khan Academy

Exponential Form to Find Complex Roots

10th - 12th
Sal solves the problem x^3 = 1 for all real and complex roots using the exponential form of the complex number. He shows how the roots found in the exponential form are the same as those in a more traditional form of a complex number...
Instructional Video13:04
Khan Academy

Basic Complex Analysis

10th - 12th
This video gives an excellent overview of the different representations of a complex number. First, Sal reviews a pictorial representation of a complex number as an Argand diagram, then shows how to find the modulus and the argument of a...