Current location - Training Enrollment Network - Mathematics courses - When I was in the eighth grade, the book "All-effective Learning Mathematics" was 28-29 pages.
When I was in the eighth grade, the book "All-effective Learning Mathematics" was 28-29 pages.
Answering questions on Zhihu has been going on for some time, and questions in this state are generally not answered by netizens in time.

The main reason is that your question is not clearly described and the specific content is not given. It is difficult for some netizens to have books for your reference. Not to mention whether you are willing to bother to understand.

So I suggest you create a new question, take a photo of the topic in the body part, or paste the full text, or give the link address of the article. This will make it easier to get the answer.