Trigonometry: Addition and Subtraction Formulas (Expressions of the Form A sin x + B cos x

This Topic is something of an application of other formulas we've learned. In particular, I'll show you another way to write A sin x + B cos x, and how to use it to simplify some trigonometric expressions.

00:00 The Formula
02:16 Derivation of the Formula
04:48 Proof of the Formula
21:02 Example

[BenKohnPhysics]

Excellent Video. Thanks for putting it together.