Pre+Calculus+chapter+5

**Chapter 5**


 * I love this chapter for it's puzzle like features! Logical reasoning at it's finest. Quite possibly my favorite introduction to a chapter in ANY math textbook anywhere: read the first couple of paragraphs. One of the sentences jumps out at me: appreciate the rich tapestry of trig...no real life application. Gotta' love it!**
 * Here's the real life application in my opinion: perseverance, grit, effort, problem solving. There is a beauty in mathematics that is not found in any other subject. Sometimes the beauty is loud and obvious (Geometry for many), sometimes it's harder to see (like these trig identities). Enjoy this cool chapter.**
 * SECTION 5.1:**


 * SECTION 5.2:**
 * [|Patrick jmt and the beginning identities] (watch this first)**
 * [|Patrick jmt and identities part 2]**
 * [|Patrick jmt and identities part 3]**