In this lesson, we learn how to simplify and write a complex expression in standard form. The first step involves understanding the definition of "i" as the square root of negative 1 and using it to find the values of i squared and i cubed. By replacing i cubed with negative i and i squared with -1, we can rewrite the expression in a scalar formula of a + bi. This standard form is much simpler than the original expression and is an essential skill to have in many areas of math.
Putting a complex expression into standard form
I show how to solve math problems online during live instruction in class. This is my way of providing free tutoring for the students in my class and for students anywhere in the world. Every video is a short clip that shows exactly how to solve math problems step by step. The problems are done in real time and in front of a regular classroom. These videos are intended to help you learn how to solve math problems, review how to solve a math problems, study for a test, or finish your homework. I post all of my videos on YouTube, but if you are looking for other ways to interact with me and my videos you can follow me on the following pages through My Blog, Twitter, or Facebook.