1. The synchronous tutoring textbook for senior high school mathematics competition covers all the topics and knowledge points needed for the competition, and provides theoretical knowledge, problem-solving skills and examples to help students understand and master it deeply.

2. The synchronous tutoring textbook of high school mathematics competition provides a large number of examples and exercises, as well as detailed problem-solving methods and answer analysis to help students consolidate their knowledge, cultivate their problem-solving ability and understand their ideas.