Math 10C: Sine and Cosine Trigonometric Ratios

Introduction to Trigonometry - Sine and Cosine Ratios
1. Developing the ratios: 00:23
2. Calculator steps to determine the ratio of the opposite/adjacent sides given an angle: 04:52
3. Calculator steps to determine an angle given the ratio of the opposite/adjacent sides: 08:30
4. Putting it all together: 10:35
5. Application questions: 17:07