Chapter 1 trigonometric function 1. 1 trigonometric function system with arbitrary angle and radian 1.2. The inductive formula of trigonometric function 1.3 The image and property function of trigonometric function y=Acos(wx+ van) and ...1.5 function y=Asin(wx+ van) 1.6 The simple application of trigonometric function model is summarized and reviewed in Chapter 2./kloc-0. The actual background and basic concept of plane vector 2.3 Linear operation of plane vector 2.3 Basic theorem Horizontal coordinate representation of plane vector 2.4 Quantity product of plane vector 2.5 Application summary Review reference questions Chapter III 3.65438