Trigonometry Course--Class 28: Applications of Trigonometry Trigonometry Course--Class 20: Inverse Trigonometric Functions and Writing the Equations of Graphs Trigonometry Course--Class 21: The Law of Sines (AAS, ASA) Trigonometry Course--Class 22: The Law of Sines (Part II), the Ambiguous Case (SSA) Trigonometry Course--Class 23: The Law of Cosines (SAS, SSS) Trigonometry Course--Class 24: Review for Test III Trigonometry Course--Class 25: Test III Trigonometry Course--Class 26: The Radian Measure of an Angle Trigonometry Course--Class 27: Applications of Radian Units for the Measures of Angles Trigonometry Course--Class 19: Transforming the Graphs of Trigonometric Functions Trigonometry Course--Class 29: Evaluating Composite Trigonometric Functions Trigonometry Course--Class 30: Evaluating Composite Trigonometric Functions (Part II) Trigonometry Course--Class 31: A Few More Things Trigonometry Course--Class 32: Review for Test IV Trigonometry Course--Class 33: Test IV Trigonometry Course--Class 34: Review for the Final Test Trigonometry Course--Class 35: The Final Test Trigonometry Course--Class 36: Calculating Your Course Grade Trigonometry Course--Class 10: Proving Equations Using the Basic Trigonometric Identities Trigonometry Course--Class 2: The Six Basic Trigonometric Functions Trigonometry Course--Class 3: Trigonometric Expressions with Angle Measures Greater than 90 Degrees Trigonometry Course--Class 4: Continued Exploration of the Six Basic Trigonometric Functions Trigonometry Course--Class 5: Continued Exploration of the Six Basic Trigonometric Functions (II) Trigonometry Course--Class 6: Using the Pythagorean Theorem to Find the Six Trigonometric Ratios Trigonometry Course--Class 7: Review for Test I Trigonometry Course--Class 8: Test I Trigonometry Course--Class 9: The Basic Trigonometric Identities Trigonometry Course--Class 1: An Introduction, Staying Organized, and the Course Content Trigonometry Course--Class 11: Trigonometric Equations Trigonometry Course--Class 12: Trigonometric Equations (Part II) Trigonometry Course--Class 13: The Sum and Difference Identities Trigonometry Course--Class 14: The Double Angle Identities Trigonometry Course--Class 15: The Half Angle Identities and More Double Angle Problems Trigonometry Course--Class 16: More Identities Trigonometry Course--Class 17: Review for Test II Trigonometry Course--Class 18: Test II