Trigonometry Series - Concepts and Formulas™
Trigonometric Identities 2, Trigonometric Equations (TRG-CF6)

This sheet provides a comprehensive review of all of the most important topics, concepts and formulas covering trigonometric identities and equations. Each concept is explained in detail, with detailed illustrations. Unlike charts and notes, this Concepts and Formulas™ sheet answers questions about how to use the concepts - how to actually solve problems with them, it doesn't just list facts and formulas. There is even an example, or two, for each concept, to help you to nail down the central ideas.

Topics Covered:

• The product-to-sum formulas
• The sum-to-product formulas
• The reduction identity
• Trigonometric equations
• How to solve trigonometric equations