"Practices in Elementary Mathematics .". Algebra. Trigonometry by B. N. Litvinenko and A. G. Mordkovich is an indispensable assistant for anyone who seeks to understand the basics of mathematics and apply their knowledge in practice. This edition will be an ideal companion for students, schoolchildren and all those who want to refresh their knowledge in the field of algebra and trigonometry. In this workshop you will find a variety of tasks that will help you not only to consolidate theoretical knowledge, but also to develop skills in solving practical problems. The authors, known for their deep knowledge in mathematics and pedagogy, offer readers a unique approach to the study of the subject. They not only explain the theory, but also show how to apply it in real-life situations. Each chapter of the book is filled with examples that help to better absorb the material and prepare for exams or test papers. What makes this book especially attractive? First, it is an accessible and understandable presentation language. The authors seek to explain complex mathematical concepts in simple words, which makes the material available to a wide audience. Secondly, the workshop includes a variety of types of tasks - from simple to more complex, which allows readers to gradually increase the level of complexity and self-confidence. The book is suitable not only for students and schoolchildren, but also for teachers who are looking for quality materials for preparing their lessons. It will be an excellent addition to the learning process and will help create an interesting and productive atmosphere in the classroom. It will also be useful to anyone preparing for exams, such as the exam or GIA, where algebra and trigonometry occupy an important place. The topics raised in the book cover a wide range of issues, from the basics of algebra, such as equations and inequalities, to more complex concepts of trigonometry, including trigonometric functions and their graphs. The authors emphasize the importance of understanding these topics to further the study of more complex mathematical disciplines, such as analysis or linear algebra. The style of Litvinenko and Mordkovich is clear and logical They know how to submit material so that it is not only informative, but also fascinating .. This allows readers not only to remember information, but also to be interested in the subject. Their previous works, such as Algebra and the Beginnings of Analysis and Geometry, have also been recognized for their accessibility and practical focus. If you are looking for a book that will help you not only to understand algebra and trigonometry, but also to love mathematics, "Practices in elementary mathematics . Algebra. Trigonometry" is exactly what you need. This book will be your reliable assistant on the way to mathematical success, as well as open doors to the world of logic and analytical thinking. Do not miss the opportunity to take a step towards new knowledge and skills!