Introduction to Sum and Difference Formulas in Trigonometry

Explore the fundamental concepts of Sum and Difference formulas for sine, cosine, and tangent functions in this comprehensive 51-minute trigonometry lecture. Learn the origins of these formulas and master their application in determining exact solutions for angles not found on the Unit Circle. Gain valuable insights into this essential precalculus topic, enhancing your understanding of trigonometric relationships and preparing you for advanced mathematical concepts.