Chen Wendeng of mathematics, four words-very classic. After reading it, I mastered about 30% of the whole high number part. Chen Wendeng's lectures are very clear, and many important knowledge points will be particularly emphasized. In the process of attending classes, I may remember most of the things that need to be remembered (that's what I did). He likes giving lectures and writing on paper, so I copied it down word for word. It took about 10 to read it. What I want to say is that no matter how busy you are and how many problems you have to do, you must watch Chen Wendeng's intensive math class during the summer vacation, and you must copy the problems with him and think over them again and again. Of course, if you are a big math student, forget it. I read the copied notes back and forth for four times, and the more I read them, the more rewarding I got, especially the regular things he summed up, which were particularly important and not found in Li Yongle's tree. Some people may say that I am advertising for Chen Wendeng, but it is not. I don't recommend signing up for his class. First, it's too expensive. Second, enrolling in his class is easy to disrupt his review plan, and the effect may not be good. You can download his videos in previous years online, and the content is basically the same. You really can't buy it on Taobao. 30 yuan is enough.
It seems many years ago that the line generation saw Li Yongle's movies, but it doesn't seem to affect his value. Li Yongle's movie, just one word-cow, combiner, his lecture on line generation, is not very thick, which will make you feel that line generation is super simple. Just that little thing, that content is repeated every year, and it is almost burnt. So, if you find it difficult to review the online generation in the early stage and think that the online generation in the whole book can't understand it (the online generation in the whole book is far worse than the handout), don't worry. After watching Li Yongle's video, you will find that the online generation is very simple.
See Wang Shian's video on probability theory. There are many summary skills in it, which are not involved in the whole book.
If you have any questions, just ask!