Standard Form of Complex Numbers

Sick of ads?​ Sign up for MathVids Premium
Taught by mrbrianmclogan
  • Currently 4.0/5 Stars.
999 views | 1 rating
Part of video series
Meets NCTM Standards:
Lesson Summary:

In this lesson, we learn how to put a complex number in standard form, which is written as a + bi. We start by rewriting the original number, and then factor out the negative under the radical. We rewrite the square root of negative one as i, and then write the imaginary part at the end. Once we have the real and imaginary parts, we can write the complex number in standard form. Remember, a is the real part and b is the imaginary part.

Lesson Description:

Putting a complex number in 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.

Questions answered by this video:
  • Write the following in standard form 3 + √(-25)