
Channel: ProfRobBob
Category: Education
Tags: profrobbobprovetrignometricprecalculusdoublemathsangletrigproofmathtarroudouble angle
Description: I work through 2 Trig Proofs involving Double Angle Identities. Example 1 Starts at 6:10 Example 2 Starts at 11:09 More Trigonometric Proofs can be found at profrobbob.com/pre-calculus/analytic-trigonometry-and-trig-proofs Check out ProfRobBob.com, there you will find my lessons organized by chapters within each subject. If you'd like to make a donation to support my efforts look for the "Tip the Teacher" button on my channel's homepage YouTube.com/Profrobbob



















