High School Trigonometry/Trigonometric Identities

Trigonometric Identities

• Fundamental Identities
• Verifying Identities
• Sum and Difference Identities for Cosine
• Sum and Difference Identities for Sine and Tangent
• Double-Angle Identities
• Half-Angle Identities
• Product-and-Sum, Sum-and-Product, and Linear Combinations of Identities
• Trigonometric Identities Exercises

This material was adapted from the original CK-12 book that can be found here. This work is licensed under the Creative Commons Attribution-Share Alike 3.0 United States License