The second book in the high school series from the Mathematical Library. This series is primarily aimed at good students, demanding educators, and all those who love mathematics and its teaching. In addition to fully covering the school curriculum at all levels, it also serves as a substantial teaching proposal for educators and a tool that methodically and effectively helps students who wish to engage in mathematical competitions.

Includes:
- Detailed theory with justifications and comments.
- Examples solved in a detailed manner.
- Exercises for solving, Group A and B in each paragraph.
- Review exercises, Group A and B for each chapter.
- General exams in the format of the June promotion exams.
- Answers to questions, solutions to exercises, and activities from the school book.