# Ch 15: Trigonometric Functions

Our video lessons on trigonometric functions are designed to teach entry-level educators about the functions of angles in mathematics. Topics include the main trigonometric functions, graphing and problem solving.

## Trigonometric Functions - Chapter Summary

This chapter is designed to provide you with an easy-to-understand introduction to trigonometric functions, including how they can be used to solve real life, mathematical problems. At the beginning of the chapter, the instructor will discuss odd and even trigonometric functions and show you how to create graphs for sine, cosine and tangent functions. You'll also learn about the relationship between trigonometric functions and amplitude and periodicity.

As the chapter continues, the instructor will explain the addition and subtraction formulas for sine, cosine and tangent. Additional topics include a discussion of the Pythagorean Identity. At the end of the chapter, you should be able to:

• Identify and express numerical, written and other representations of trigonometric functions and their inverses
• Recognize and apply connections among trigonometric properties, including axes of symmetry, local extrema and zeroes
• Identify the amplitude, frequency, phase shift and other characteristics of trigonometric functions, graphs of functions and mathematical notations
• Understand the relationships between trigonometric functions and their inverses and use the relationships to solve problems
• Uses trigonometric identities to simplify expressions and solve equations.

Our concise, engaging video lessons on trigonometric functions are intended to help shorten the learning curve for this complex mathematical subject. Taught by experienced, professional instructors, each tutorial is accompanied by a lesson transcript with links to text-based materials and further information. At the end of each chapter, you can use the online self-assessments to find out how well you understood the presentation. If you need to review a key term or concept, the video tags allow you to locate specific parts of the video, without having to re-watch the entire lesson.

13 Lessons in Chapter 15: Trigonometric Functions
Test your knowledge with a 30-question chapter practice test
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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