Idaho State University

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• Section 6.1: Radian Measure
• Section 6.2: Trigonometric Functions of Angles
• Section 6.3: Evaluating Trigonometric Functions
• Section 6.4: Algebra and Trigonometric Function
• Section 6.5: Right-Triangle Trigonometry
• Section 7.1: Trigonometric Functions of Real Numbers
• Section 7.2: Graphs of the Sine and Cosine Functions
• Section 7.3 Graphs of Sine and Cosine shifts
• Section 7.4: Simple Harmonic Motion
• Section 7.5: Graphs of Tangent and Reciprocal Functions
• Section 8.1: The Addition Formulas
• Section 8.2: The Double-Angle Formulas

Section 6.5: Right Triangle Trigonometry

Sketchpad files Here is a Sketchpad file, showing the three main trigonmetric functions as side ratios in a right triangle.

Applet

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