# Ch 46: NES Math: Trigonometric Identities

Refresh your knowledge of types of trigonometric identities, their uses and applications, as you study for the NES Math exam. Use the tools in this part of our study guide to help you brush up on these topics.

## NES Math: Trigonometric Identities - Chapter Summary

Let us support your review of trigonometric identities and their uses while you get ready for the related part of the NES Math test. Our snappy lessons cover topics such as:

• Definition of trigonometric identities and their purpose
• Basic trigonometric identities and alternate forms
• Applications and uses of various types of identities, including Pythagorean, reciprocal, double- and half-angle
• How to verify a trigonometric equations identity
• How to apply the sum and difference identities

Available 24/7 via computer, tablet or smartphone, these video lessons average about five minutes in length. After you watch them, you can test your understanding with short lesson quizzes and a more comprehensive chapter exam. Clickable links back to specific parts of the lesson make it easy to review and discover where you need more study. Our expert instructors use plenty of examples, practice problems and humor to make the lessons entertaining, and you can contact them through our message board if you have questions.

### NES Math: Trigonometric Identities Chapter Objectives

The NES Math test, used in five states as a requirement for teacher certification in mathematics, is a computer-delivered exam consisting entirely of multiple-choice questions. The quizzes that accompany each of our lessons are in the same format and will provide good practice for what you'll face on test day.

Questions on the NES test are divided into five content domains. Trigonometric identities are covered in the content domain on trigonometry and calculus, which makes up 19% of the test's total score.

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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