Trigonometry Cheat Sheet
Trig Reference sheet with ALL those identities, formulas, also includes Taylor Expansions, Unit Circle and tables of values
I need so much help! Pre-cal for Dummies
Trig Identities More
Pythagorean Identities Cheat Sheet | Trig+Identities.JPG
Pythagorean Identities Cheat Sheet | Trig Identities
Pre-Calculus For Dummies Cheat Sheet
I don't ever plan on teaching high school math, but you never know. This looks helpful.. maybe for friends still in college.