Section 4.2: Trigonometric Ratios and Special Angles (p. 211 - 215)
Key Concepts:
Prior Knowledge:
The Exact Value of Trigonometric Ratios for Special Angles: 30°, 45°, and 60°
The Exact Value of Trigonometric Ratios for Special Angles: 30°, 45°, and 60°
Reciprocal Trigonometric Ratios
Exact Values for Trigonometric Ratios Given a Point on the Circle
Lessons for Section 4.2:
1. The Unit Circle with Special Angles in Radians (Memorize!)
2. Evaluating Trigonometric Ratios Using a Calculator (Degree and Radian Measure)
3. Trigonometric Ratios and Special Angles
4. Determining Trigonometric Ratios Using the Unit Circle
5. Determining Exact Values of Trigonometric Ratios
6. Determining Exact Values of Trigonometric Ratios Using Reference Triangles
Assigned Practices:
- Worksheet 4.2
- eBook: Do exercises on p. 216 #3 to 6, #8 to 11, #13, #20
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