On the complex plane, the real-number axis is horizontal and the imaginary axis is vertical. And the complex plane opens up a lot of interesting ways to look at complex numbers.

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

Learn about the imaginary unit, "i", a unique number defined as the square root of -1. It's a key part of complex numbers, which are in the form a + bi. The powers of "i" cycle through a set of …

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 …

An emerging pattern From the table, it appears that the powers of i cycle through the sequence of i , 1 , i and 1 . Using this pattern, can we find i 20 ? Let's try it! The following list shows the first …

Learn how complex number multiplication behaves when you look at its graphical effect on the complex plane.

Given a complex number in the form a+bi, find its modulus (also called its absolute value).

Unit 46: Real and Complex Numbers 229+ 900 possible mastery points Mastered Proficient

Dive into expressions involving the imaginary unit 'i', simplifying them to reveal the real and imaginary components. Learn how real and imaginary numbers are subsets of complex …

Learn what the complex plane is and how it is used to represent complex numbers.