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Ch 43: OAE Mathematics: Trigonometric Functions

About This Chapter

Problems involving trigonometric functions are a key part of the OAE Math exam. Get your trigonometry skills up to speed with the fun and engaging video lessons in this chapter.

OAE Mathematics: Trigonometric Functions - Chapter Summary

Take an in-depth look at trigonometric ratios, the law of cosines and more as you study for the OAE Mathematics exam. Additional topics this chapter on trigonometric functions include:

  • Understanding the sine and cosine
  • The double angle formula
  • Working with the Pythagorean theorem
  • Defining cotangents and secants

Our world-class math instructors can prepare you for just about any problem set involving trig functions on the OAE Math test. Their video lessons are teeming with easy-to-follow example problems and solutions, and you'll continually assess your own abilities by taking a quiz at the end of each lesson. You can always ask for help if you need it.

Objectives of the OAE Mathematics: Trigonometric Functions Chapter

As a current or new educator in Ohio, passing the OAE Mathematics exam is required if you want to obtain a math teaching credential for grades 7-12. Our video lessons can prepare you for any questions involving trig functions on the test. Problems of this type, along with other questions related to trigonometry and calculus, make up 19% of the complete exam.

You'll have four hours and 15 minutes to answer 150 multiple-choice questions in a computer-based format, and you'll need to score at least 220 in order to pass.

11 Lessons in Chapter 43: OAE Mathematics: Trigonometric Functions
Test your knowledge with a 30-question chapter practice test
Trigonometry: Sine and Cosine

1. Trigonometry: Sine and Cosine

Learn an easy trick to help you solve trigonometry problems, including problems with sine, cosine and inverse trig functions. At the end of this lesson, you'll know what SohCahToa means and how to use it.

Trigonometry and the Pythagorean Theorem

2. Trigonometry and the Pythagorean Theorem

Explore how the Pythagorean Theorem can be used in conjunction with trigonometric functions. In this lesson, take an inverse trigonometric function, and define all three sides of a right triangle.

Other Trigonometric Functions: Cotangent, Secant & Cosecant

3. Other Trigonometric Functions: Cotangent, Secant & Cosecant

After watching this video lesson, you will understand how the trigonometric functions cotangent, secant, and cosecant are related to the sine, cosine, and tangent functions.

Trigonometric Ratios and Similarity

4. Trigonometric Ratios and Similarity

Where do terms like sine, cosine and tangent come from? In this lesson, we'll learn about how similarity with right triangles leads to trigonometric ratios.

Unit Circle: Memorizing the First Quadrant

5. Unit Circle: Memorizing the First Quadrant

Memorizing the unit circle can be a daunting task, but this lesson will show you a pattern to help you memorize the points, degree measures, and radian measures for the entire first quadrant.

Using Unit Circles to Relate Right Triangles to Sine & Cosine

6. Using Unit Circles to Relate Right Triangles to Sine & Cosine

The unit circle is a helpful tool for understanding trigonometric concepts. In this lesson, we'll look at right triangles on the unit circle to better grasp sine and cosine.

Special Right Triangles: Types and Properties

7. Special Right Triangles: Types and Properties

Not all right triangles are the same. In this lesson, we'll look at two special right triangles (30-60-90 and 45-45-90) that have unique properties to help you quickly and easily solve certain triangle problems.

Trigonometric Function Values of Special Angles

8. Trigonometric Function Values of Special Angles

After watching this video lesson, you will better understand the six trigonometric functions. You will also know what special angles there are and what the trigonometric values for these special angles are.

Law of Sines: Definition and Application

9. Law of Sines: Definition and Application

Don't get stuck trying to find missing sides or angles in a triangle. Use the Law of Sines to rescue you from any perilous triangle in which you have just a few pieces of information.

Law of Cosines: Definition and Application

10. Law of Cosines: Definition and Application

In this lesson, we'll learn how to solve problems involving three sides and one angle in a triangle. The Law of Cosines, a modification of the Pythagorean Theorem, will save the day.

The Double Angle Formula

11. The Double Angle Formula

When you encounter a doubled angle, there are special formulas that can help you handle trigonometric value. In this lesson, we'll define and practice using the double angle formulas for sine, cosine and tangent.

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.
Not Taken

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Other Chapters

Other chapters within the Ohio Assessments for Educators - Mathematics (027): Practice & Study Guide course

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