# Ch 22: Algebra II: Trigonometry

Our Algebra II: Trigonometry chapter can show you how to graph trigonometric functions and solve a variety of trigonometric equations. Concise video lessons and practice sets can help you understand the material contained in the chapter.

## Algebra II: Trigonometry - Chapter Summary and Learning Objectives

This chapter dives quickly into several trigonometry topics. You'll start by learning how to graph sine and cosine transformations, as well as tangent functions. Lessons provide overviews of different types of special triangles. You'll also develop the mathematical skills needed to solve trigonometric equations. At the end of this chapter, you should have a strong understanding of the following topics:

• Sine and cosine transformations
• Unit circles
• Special right triangles
• The double angle formula
• Basic trigonometric identities

Video Objective
Graphing Sine and Cosine Transformations Be able to graph sine and cosine unit circles and transformations.
Graphing the Tangent Function: Amplitude, Period, Phase Shift and Vertical Shift Understand how to graph the tangent function and explain shifts of A/B/lambda.
Unit Circle: Memorizing the First Quadrant Memorize and name the first quadrant of the unit circle, including x- and y-values of 0, 30, 45, 60 and 90 degree angles.
Using Unit Circles to Relate Right Triangles to Sine and Cosine Relate right triangles to the sine and cosine using unit circles.
Special Right Triangles: Types and Properties List the common properties of special right triangles, including 45-45-90 triangles and 30-60-90 triangles.
Law of Sines: Definition and Application Understand the law of sines and how to use two angles and a side to define the entire triangle.
Law of Cosines: Definition and Application Define the law of cosines and apply the law to finding triangle angles.
The Double Angle Formula Apply the angle sum formula to a double angle.
Converting Between Radians and Degrees Convert angles in radians to degrees and vice versa.
How to Solve Trigonometric Equations for X Correctly solve trigonometric equations for x.
List of the Basic Trig Identities Name the basic trigonometric identities and corresponding angles.

11 Lessons in Chapter 22: Algebra II: Trigonometry
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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