1. 1 arbitrary angle and arc system

1.2 trigonometric function at any angle

Reading and thinking about trigonometry and astronomy

The inductive formula of 1.3 trigonometric function

Images and properties of 1.4 trigonometric function

It is found that the function y=Asin(ωx+φ) and the function y=Acos(ωx+φ).

The properties of sine function and cosine function are discovered by exploring the trigonometric function line in the unit circle

In the application of information technology, y=tanx, x∈(-π/2, π/2) is drawn by tangent.

1.5 image of function y=Asin(ωx+φ)

Amplitude, Period, Frequency and Phase of Reading and Thinking

Simple application of 1.6 trigonometric function model

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Review reference questions

Chapter II Plane Vector

2. The actual background and basic concepts of1plane vector

Reading and thinking about the origin of vectors and vector symbols

2.2 Linear Operation of Plane Vector

2.3 Basic Theorem and Coordinate Representation of Plane Vector

2.4 product of plane vectors

2.5 examples of plane vector application

The operation (algorithm) and graphic properties of reading and thinking vectors

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Review reference questions

Chapter III Triangular Identity Transformation

3. 1 sine, cosine and tangent sum difference formula

Application of Information Technology Making Trigonometric Function Table with Information Technology

3.2 Simple trigonometric identity transformation

summary

Review reference questions