# Ch 43: PLACE Mathematics: Using Trigonometric Functions

Use the lessons in this chapter to refresh your trigonometric knowledge in preparation for the PLACE Mathematics exam. Our video lessons, quizzes and chapter test can help you prepare to do your best on exam day.

## PLACE Mathematics: Using Trigonometric Functions - Chapter Summary

Watch our brief video lessons taught by subject-matter experts to brush up on functions related to triangles and the practical uses for trigonometry. Reading through the transcripts is another way to remember how to apply key terms you'll see on the PLACE Mathematics exam. Additional topics covered in this chapter include:

• Sine and cosine
• The Pythagorean theorem
• Cotangent, secant and cosecant functions
• Trigonometric ratios and similarity
• Unit circles and the first quadrant
• Right triangles and special right triangles
• Area using sine
• Function values of special angles
• Law of sines and law of cosines
• The double angle formula

### Objectives of the PLACE Mathematics: Using Trigonometric Functions Chapter

Your understanding of how to relate the angles of a triangle to the sides of a triangle and other trigonometric functions may be tested within in the Measurement and Geometry section of the PLACE Mathematics exam; this section makes up 19% of the total exam. All of the questions on this test are multiple choice, and we include similar quizzes and a chapter test for you to measure your understanding of the subject as well as gain experience answering the types of questions you'll have on the exam.

11 Lessons in Chapter 43: PLACE Mathematics: Using 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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