Trigonometric function is a simple knowledge point that must be observed in the big questions of college entrance examination every year. Its location is usually in 17 or 18, which is not too difficult. Mainly to examine students' ability to master and use formulas of trigonometric functions transformation. Multiple-choice questions and fill-in-the-blank questions are the simplest publicity. As long as everyone learns the basic knowledge of trigonometric function, it is not a problem to answer his college entrance examination questions.

2. The second part, solid geometry.

Among all the questions in college entrance examination, solid geometry is an important part. This type of question is characterized by high flexibility, moderate difficulty and diversified problem-solving methods. Therefore, when reviewing this part, students should learn to establish coordinate system, use vector method, find special points, make auxiliary surfaces and auxiliary lines, and verify the answers relatively quickly by using the properties of solid geometry. Therefore, when reviewing this part, we should learn to use various methods to solve problems, and we can refer to some commonly used solid geometry problems mentioned in the last article.

3. The third part, conic curve.

Among all the answers to college entrance examination questions, the knowledge points that basically belong to functions are the most and the most difficult. The index function is examined as the finale of each question type. Besides function, conic is also difficult, but the choice of fill-in-the-blank questions on conic is relatively simple. As long as students master this kind of questions skillfully, it is relatively easy to score. During the holiday, you can review the key points of filling in the blanks and choosing seats by yourself, and it is relatively easy to score in the exam.