1. 1 quadratic radical

A complete solution of knowledge and skills

Properties of 1.2 quadratic roots

Operation of 1.3 Quadratic Radical

Chapter II Quadratic Equation in One Variable

2. 1 unary quadratic equation

2.2 the solution of quadratic equation in one variable

2.3 the application of one-dimensional binary equation

Chapter III Frequency and its Distribution

3. 1 frequency and frequency

3.2 Frequency Distribution Histogram

3.3 Frequency Distribution Diagram

Chapter IV Proposition and Proof

4. 1 Definition and proposition

4.2 proof

4.3 Counterexamples and Proof

4.4 Reduction to absurdity

Chapter V Parallelogram

Comprehensive explanation of this chapter

5. 1 polygon

5.2 parallelogram

5.3 Properties of Parallelogram

5.4 Center symmetry

5.5 Determination of parallelogram

5.6 triangle midline

5.7 Inverse Propositions and Theorems

Chapter VI Special Parallelogram and Trapezoid

6. 1 rectangle

6.2 Diamonds

6.3 square

6.4 trapezoid