Trigonometry Series - Concepts and Formulas™
Periodicity and Trigonometric Graphs (TRG-CF3)

This sheet provides a comprehensive review of all of the most important topics, concepts and formulas covering the periodicity of trigonometric functions and trigonometric graphs. 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:

• Sine and Cosine as circular functions
• Periodic functions
• Fundamental cycles
• Complete cycles
• Wave length
• Odd and Even trigonometric functions and their respective symmetries
• Amplitude
• Phase shift
• Frequency
• The general sine and cosine functions
• Tangent, Cotangent, Cosecant and Secant functions