The big problem of linear algebra is mainly the parameter problem. The first step is to find the parameters by proof, and the second step is to calculate them by the basic method of the examples in the book. In probability statistics, not only the formula of backrest, but also the formula theorem and topic should be organically combined.
Mathematics should also examine the ability and application of candidates. The more time you spend reviewing math, the more problems you can't solve and gradually accumulate. At present, many students are facing a very difficult situation. One is that there are some incomprehensible problems accumulated in reference books, and you will encounter some difficulties in self-study. Therefore, in this period, candidates are faced with the same task, that is, strengthening and improving. There are many contents and difficult topics in the review of advanced mathematics. Everyone works hard, but the effect is often not very good.