Ch 10: FTCE Math: Complex Numbers

About This Chapter

Complex numbers are the focus of this chapter. Within, you'll find animated videos and a text lesson that are designed to educate learners about mathematics. Prior to taking the FTCE Math examination, you may want to explore these lessons.

FTCE Math: Complex Numbers - Chapter Summary

This chapter includes lessons on complex, imaginary and unrelated numbers. You can get a better understanding of De Moivre's formula and polar form conversion as well as the formula for subtraction of complex numbers. Once the process of performing various operations with complex numbers is second nature to you, you'll have a good change of answering the FTCE Math examination's related questions accurately. Review the videos for comprehensive assistance with:

  • Defining imaginary numbers and explaining their origins
  • Dividing, adding, subtracting, multiplying and graphing complex numbers
  • Converting complex numbers to polar or vector form

Learn from professionals who have secondary degrees in mathematics while you get ready to take the FTCE Math examination. The videos could last anywhere from five to eight minutes on average. Take our lessons with you anywhere as long as you have a mobile device and Internet access. The short quizzes can help you gauge how much you're learning while identifying any areas that you should study further. You may also ask questions by utilizing the ask-an-expert feature.

6 Lessons in Chapter 10: FTCE Math: Complex Numbers
Test your knowledge with a 30-question chapter practice test
What is an Imaginary Number?

1. What is an Imaginary Number?

The imaginary number 'i' is the square root of -1. Although this number doesn't actually exist, pretending that it does allows us to do a bunch of crazy math that scientists use every day. Learn the basics of that number 'i' here!

How to Add, Subtract and Multiply Complex Numbers

2. How to Add, Subtract and Multiply Complex Numbers

Knowing that complex numbers exist is the first step. But that knowledge alone won't help you do much with them. Learn the basics of complex number addition, subtraction and multiplication here!

How to Divide Complex Numbers

3. How to Divide Complex Numbers

While adding, subtracting and multiplying complex numbers is pretty straightforward, dividing them can be pretty tricky. It comes down to the process of multiplying by the complex conjugate. Learn about what that is, and how to do it, here.

How to Graph a Complex Number on the Complex Plane

4. How to Graph a Complex Number on the Complex Plane

Graphing complex numbers is pretty straight forward, but it's not necessarily intuitive. Check out this lesson to learn the vocabulary and the conventions that you'll need.

Complex Numbers in Polar Form: Process & Examples

5. Complex Numbers in Polar Form: Process & Examples

After watching this video lesson, you will be able to convert complex numbers from rectangular form to polar form easily by following the formulas you will see here. You will also learn how to find the power of a complex number.

Representing Complex Numbers With Vectors

6. Representing Complex Numbers With Vectors

In this lesson, we will explore complex numbers and vectors, and we will look at how these two concepts, though seemingly unrelated, work together by representing complex numbers with vectors.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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Other Chapters

Other chapters within the FTCE Mathematics 6-12 (026): Practice & Study Guide course