"Optional Course in Mathematics .". Solution of problems of class 11" by the authors and . F. Sharygina and B. and . Golubeva is not just a textbook, but a real find for high school students seeking to deepen their knowledge in mathematics and prepare for high-level exams. In the context of the modern educational process , where the requirements for students’ knowledge are becoming increasingly high, This publication offers a systematic approach to the study of complex topics , Which makes him an indispensable helper for everyone. Who doesn’t just want to take exams? but really understand mathematics. The book covers a wide range of topics, ranging from algebra to geometry, and offers readers a variety of problems of varying degrees of complexity. Each section begins with a theoretical material that is presented in an accessible and understandable language, which allows even those who are not a mathematical genius to easily learn the basic concepts. The authors focus on the practical application of knowledge, offering many examples and tasks that will help to consolidate the studied . This is especially true for 11th graders who are preparing for the exam and other exams, where not only knowledge of the theory is required, but also the ability to apply it in practice. Who can like this book? First of all, it will be useful for high school students who want to deepen their knowledge and prepare for exams . But not only students: teachers and tutors will also find in it a lot of useful materials for preparing lessons and additional tasks. The book is suitable for both individual study and group work, which makes it a universal tool for anyone interested in mathematics. The topics raised in the book cover not only traditional mathematical concepts, but also develop logical thinking and analytical abilities. The authors emphasize the importance of mathematical thinking in everyday life and in various professions, which makes studying mathematics not only useful, but also fascinating. The book inspires readers to find non-standard solutions and helps to develop a creative approach to solving problems. Style and . F. Sharygina and B. and . Golubeva is distinguished by clarity and accessibility, which makes their work especially attractive to a wide audience. The authors are known for their other teaching aids and methodological developments, which have already managed to gain the trust of both students and teachers. Their experience and professionalism make it possible to create high-quality materials that really help students . If you are looking for a book that will help you not only to prepare for exams, but also to love mathematics, "Optional Course in Mathematics . Solving Class 11 Problems” will be an excellent choice . It will not only increase your knowledge, but also help you develop confidence in your abilities. Read, solve problems and discover the world of mathematics from a new side!