I'm a sophomore now, and I just finished my advanced math exam last year. In fact, advanced mathematics is really difficult for some people to learn, and what the teacher said is not very clear. There are many students in our class who are not good at math. Generally, you can talk to the teacher more when you want to take the exam. He will tell you many questions. Although there is no original title, it will not deviate too much. This is very important.