Section 9.3
Trigonometric Functions of Any Angle
Reference angles; trig functions on the unit circle; CAST diagram.
13 lessons. Pick what you need.
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Chapter 9 · Trigonometric Ratios and Functions
Lesson
Lesson Introducing Trigonometric Functions from Standard Position
Examples
Examples Finding the Values of Trig Functions, Terminal Side Through a Certain Point
Examples
Examples Finding the Values of Trig Functions, Equation of Terminal Side Given
Lesson
Lesson Evaluating Trig Functions for Quadrantal Angles
Examples
Examples Finding Values of Trig Functions for Quadrantal Angles
Lesson
Lesson Referencing Angles and Non-Acute Angles (non-quadrantal angles)
Examples
Examples Using Reference Angles to Evaluate Trig Functions and Expressions
Examples
Examples Finding Values of Theta using Reference Angles
Lesson
Lesson Using the Unit Circle to Determine Domains of Circular Functions
Lesson