1. Mathematics learning focuses on thinking, and the highest level of mathematics is to draw inferences from others. It is not easy to reach this state. My method is to compare different questions applied to the same method and summarize their similarities and differences. After thinking, I will naturally have an extraordinary understanding of it. 2. Set up a set of wrong questions to collect your own mistakes. Take it out when reviewing, and you will get good grades in the exam. 3. Make a simulation paper before the exam, the test paper is almost the best as the real question, increase your self-confidence and better adapt to the examination room; 4. Turn over the books frequently, recall the vague concepts immediately, and mark them well.

I don't think it's necessary to dwell on whether to study the previous books again. When you find that you can't learn a certain topic, but it is in your previous book, it is necessary for you to turn it out and review it ~ _ ~ You can take it to school for convenience ~ _ ~

We can communicate again if we have specific questions. Good luck!