If you have The Mathematics Companion, this relevant material is in sections 1.1.6, and 1.6. The material is covered more comprehensively there then in the videos below at present.
Here is a selection of videos mostly from Kahn Academy that are most appropriate for reviewing key concepts in trigonometry applicable to physics:
The basics: cos, sin and tan. (intro)
Need to add double-angle, various addition rules and more on hyperbolic functions.