Take the 20 17 Chengdu senior high school mathematics test questions as an example, with the following topics:

1, 1. 1 any angle (P2~P5)

2. 1.2. 1 trigonometric function of any angle (before P 1 1~P 13)

3. 1.2.2 Basic relations of trigonometric functions with the same angle (P 18~P20)

4. 1.4. 1 images of sine function and cosine function (P30~P33)

5. Properties and images of tangent function of1.4.3 (p42 ~ p45)

6.2. Actual background and basic concepts of1plane vector (P74~P76)

7, 2.2.2 Vector Subtraction and Its Geometric Significance (P85~P86)

8, 2.3. 1 plane vector fundamental theorem (P93~P94)

9, 2.4. Physical background and significance of1plane vector product (P 103~P 105)

Cosine formula of angular difference10,3.1.1(p124 ~ p127)