Table of contents
- 0. Review of College Algebra(290)
- 1. Measuring Angles(327)
- 2. Trigonometric Functions on Right Triangles(206)
- 3. Unit Circle(235)
- 4. Graphing Trigonometric Functions(191)
- 5. Inverse Trigonometric Functions and Basic Trigonometric Equations(213)
- 6. Trigonometric Identities and More Equations(334)
- 7. Non-Right Triangles(117)
- 8. Vectors(166)
- 9. Polar Equations(96)
- 10. Parametric Equations(15)
- 11. Graphing Complex Numbers(91)
3. Unit Circle
Trigonometric Functions on the Unit Circle
3. Unit Circle
Trigonometric Functions on the Unit Circle: Study with Video Lessons, Practice Problems & Examples
71PRACTICE PROBLEM
The circle with a radius of one unit is partitioned into twelve equal arcs, where each arc corresponds to specific t-values. Determine the value of the trigonometric function at the given real number t using the (x,y) coordinates in the diagram or specify that the expression is undefined.
![Unit circle with coordinates and angles for trigonometric functions in trigonometry.](https://lightcat-files.s3.amazonaws.com/problem_images/ec892826fbd28c1d-1684265106775.jpg)
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The circle with a radius of one unit is partitioned into twelve equal arcs, where each arc corresponds to specific