## Math 1A/1B. Pre-Calculus: Verifying Trigonometric Identities - Sum & Difference Formulas (English)

- Author:
- Sarah Eichhorn
- Title:
- Lecturer
- Department:
- Mathematics

- Author:
- Rachel Lehman
- Title:
- Lecturer
- Department:
- Mathematics

Math 1A/1B: Pre-Calculus by Dr. Sarah Eichorn and Dr. Rachel Lehman is licensed under a __Creative Commons Attribution-ShareAlike 4.0 International License__.