The Problems of Increasing the Difficulty of Algebra and the Beginnings of Analysis . The textbook for the 10-11th grades of secondary school, authored by Boris Mikhailovich Ivlev, is a unique and valuable resource for high school students seeking to deepen their knowledge in the field of algebra and analysis. This manual will be an indispensable assistant for students preparing for exams, as well as for those who want to develop their mathematical skills to a higher level. This tutorial contains tasks that not only test knowledge, but also stimulate thinking, develop logical abilities and teach how to apply theoretical knowledge in practice. Each problem is carefully selected and illustrated, which allows the reader not only to solve equations and inequalities, but also to understand their essence, as well as to see how algebra and analysis are related to real life. This makes the book especially attractive for those who want not just to learn formulas, but to consciously approach the study of mathematics. The book will be of interest to both students and teachers . High school students who are preparing for the exam or other exams will find in it many useful tasks that will help to consolidate the material passed and prepare for tests . Teachers will be able to use the manual as additional material in lessons, as well as for organizing extracurricular work with students . The manual will be an excellent tool for individual classes, allowing each student to work at their own pace and at their own level. The topics raised in the book cover a wide range of issues, from the basics of algebra to more complex concepts of analysis. This allows readers not only to prepare for exams, but also to develop a deep understanding of mathematical concepts. The manual examines both classical problems and modern approaches to their solution, which makes it relevant and in demand in the context of a rapidly changing educational process. The style of Boris Mikhailovich Ivlev is distinguished by the clarity and accessibility of the presentation . He is able to explain complex things in simple language, which makes his books especially valuable for schoolchildren. Among other well-known works of the author, there are manuals on geometry and mathematical analysis, which are also popular among students and teachers. Ivlev creates educational materials that are not only informative, but also fascinating, which allows readers to immerse themselves in the study of mathematics with interest. If you are looking for a quality exam preparation manual or want to deepen your knowledge of algebra and analysis, the book "Tasks to increase the difficulty of algebra and the beginnings of analysis" will be an ideal choice. It is suitable both for self-study and for working in a group .. Do not miss the opportunity to discover the world of mathematics with a new perspective, which is offered by Boris Mikhailovich Ivlev in his textbook .