**關於此課程：**This course covers mathematical topics in trigonometry. Trigonometry is the study of triangle angles and lengths, but trigonometric functions have far reaching applications beyond simple studies of triangles. This course is designed to help prepare students to enroll for a first semester course in single variable calculus.
Upon completing this course, you will be able to:
1. Evaluate trigonometric functions using the unit circle and right triangle approaches
2. Solve trigonometric equations
3. Verify trigonometric identities
4. Prove and use basic trigonometric identities.
5. Manipulate trigonometric expressions using standard identities
6. Solve right triangles
7. Apply the Law of Sines and the Law of Cosines

My only complaint is the textbook. Although, it is well written, I believe that the Precalculus written by Jay Ahbrason from Arizona State U and publish by OpenStax is a better textbook in presenting the same material cover by the course.

I would also recommend that the authors of this course add a module on modeling with trigonometric functions and to create a course called Pre-Calculus: Series and Sequences to better prepare students for engineering and calculus courses.

Otherwise this a great course.