1. Trigonometric Functions of General Angles Section 3.4

2. Objectives Find the exact values of the trigonometric functions for general angles. Use coterminal angles to find the exact value of a trigonometric function. Determine the signs of the trigonometric functions of an angle in a given quadrant.

3. Given (x, y) as the coordinates of any point (except the origin) on the terminal side of θ, and r as the distance from the origin to (x, y), the six trigonometric functions can be written in the following manner:

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5. Find the exact values of the six trigonometric functions of 0°.

7. Find the exact values of the six trigonometric functions of 90°.

9. Find the exact values of the six trigonometric functions of 180°.

11. Find the exact values of the six trigonometric functions of 270°.

13. Coterminal Angles Two angles in standard position that have the same terminal side The values of the trigonometric functions of coterminal angles are equal.

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