The table below shows examples of complex numbers, with the real and imaginary parts identified. Some people find it easier to identify the real and imaginary parts if the number is written in standard …

Course: Algebra 2 > Unit 2 Lesson 5: Multiplying complex numbers Multiplying complex numbers Multiply complex numbers (basic) Multiplying complex numbers Multiply complex numbers Complex …

This topic covers: - Adding, subtracting, multiplying, & dividing complex numbers - Complex plane - Absolute value & angle of complex numbers - Polar coordinates of complex numbers

We'll learn what imaginary and complex numbers are, how to perform arithmetic operations with them, represent them graphically on the complex plane, and apply these concepts to solve quadratic …

The table below shows examples of complex numbers, with the real and imaginary parts identified. Some people find it easier to identify the real and imaginary parts if the number is written in standard …

Sal explains how we obtain complex numbers by adding real numbers and imaginary numbers. Created by Sal Khan.

Sometimes, thinking of i as a variable, like x , is helpful. Then, with just a few adjustments at the end, we can multiply just as we'd expect. Let's take a closer look at this by walking through several examples.

And the complex plane opens up a lot of interesting ways to look at complex numbers. For example, the complex number 3+4i would be represented by the point (3,4) on the complex plane.

Let's build off of our previous work with complex numbers and perform more sophisticated operations, like division. We'll also learn about a different and more visual way to represent complex …

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