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Ch 10: MTLE Mathematics: Complex Numbers

About This Chapter

Complete this chapter to get a handle on what you need to know about complex numbers for the MTLE mathematics test. Our lessons help you review the concepts involved with this topic.

MTLE Mathematics: Complex Numbers - Chapter Summary

Improve your readiness for the MTLE mathematics exam by reviewing complex numbers. The lessons and quizzes in this chapter focus on:

  • Imaginary numbers
  • Solving quadratics
  • Adding, subtracting, multiplying, dividing and graphing complex numbers
  • The polar form of complex numbers

After watching the video lessons to brush up on the equations related to complex numbers, you can test your understanding of this subject with the interactive quizzes. The chapter also features a larger chapter test to offer you more chances to apply your mathematical knowledge.

6 Lessons in Chapter 10: MTLE Mathematics: 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 Solve Quadratics with Complex Numbers as the Solution

2. How to Solve Quadratics with Complex Numbers as the Solution

When you solve a quadratic equation with the quadratic formula and get a negative on the inside of the square root, what do you do? The short answer is that you use an imaginary number. For the longer, more helpful answer, check out this lesson!

How to Add, Subtract and Multiply Complex Numbers

3. 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

4. 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

5. 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

6. 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.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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Other Chapters

Other chapters within the MTLE Mathematics: Practice & Study Guide course

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