**关于此课程： **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

The materials were phenomenal. Frankly, it was overkill. You could just watch the videos and at least pass this course. That made it a bit tricky to decide how much of the work REALLY had to be done. There were also a few times when it would have been good to talk to a person. Nevertheless, on the whole, for the money and what I needed, an excellent experience. -John M / NYC