I hope I can help you.

Hope to adopt

The mathematical finale of the senior high school entrance examination has many knowledge points, strong comprehensiveness, wide coverage, complex relationship, hard-to-find ideas and flexible solutions, which is the focus of the senior high school entrance examination. This kind of problem generally combines many knowledge points, algebra and geometry, and will inevitably transform each other. Therefore, the final exam question is not an isolated knowledge point, nor is it a personal way of thinking. It is a comprehensive investigation of candidates' comprehensive ability, involving a wide range of knowledge and using comprehensive mathematical thinking methods. It is often because candidates have insufficient experience in solving problems or can't flexibly use the basic knowledge and methods they have learned, and they feel that they can't start after getting the questions. After several shocks, I either gave up automatically or gave up halfway because of time constraints, and my heart was "bitter." Therefore, it is easy for candidates to retreat. In order to improve the scoring rate of the finale, the following methods are proposed.

First of all, while firmly mastering the basic knowledge, we should cultivate our ability to use various mathematical thinking methods, master common problem-solving methods and skills, and at the same time establish confidence in winning. Secondly, to examine the difficulty of the finale, there are generally two or three minor issues below the big topic, from easy to difficult. When you answer, you should get the score of easy questions, strive for the middle difficulty and strive for the most difficult, which greatly improves the possibility of getting high marks in mathematics in the senior high school entrance examination. In addition, be sure to pay attention to the subdivision score. If you can't do a final exam, it doesn't mean you have no idea. You should consider all possible analysis from the shallow to the deep and know how to do it step by step. Because the scores of the senior high school entrance examination are scored according to the knowledge points examined in the questions, points are given for answering knowledge points, and points are given for answering more questions. Therefore, for the topic of the final exam, we should try our best to understand and do it and give full play to our own level. For example, the following example (2) only needs to judge the conclusion and write it as AC=CE. (3) Just write "There is no straight line that meets the requirements." You are sure to get a score.

Example: As shown in the figure (the figure cannot be uploaded), it is known that two points A(- 1, 0) and B (4,0) are on the X axis, and a semicircle P with a diameter of AB intersects the Y axis and point C.

(1) Find the analytical formula of parabola passing through points A, B and C;

(2) Let the intersection OC of the middle vertical line of AC be at D, connect AD and extend the intersection semicircle P of AD to point E. Is AC equal to CE? Please prove your conclusion.

The above introduction is about some related introductions of the mathematics finale of the senior high school entrance examination. I hope you can spend more time reading the above contents and wish you success.