**About this course: **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

This course is a great way to refresh your knowledge of trigonometry. I realized I had forgotten pretty much everything I had ever learned about it when I set out to start reviewing math a few weeks ago, but now I feel like most of it has returned to me thanks to this course. I work full time and I don't have time to figure out how to re-teach myself math. The lectures for this course were all example based. The professor introduces concepts by solving example problems, and at the end of each unit there's a quiz in which you try solving similar problems yourself. There is also a free textbook with lots of very detailed explanations and extra example problems in it, and each week includes a list of links from a couple of other math websites which contain notes and more example problems related to the concepts that will be presented that week. These resources will be especially useful to people who are approaching trigonometry for the first time. Overall, I was very satisfied with this course and I am glad that I bought the certificate for it.