Trigonometry in Exercises and Tasks . Nachman A. D. is an indispensable resource for all who seek to understand and master one of the most interesting and complex branches of mathematics - trigonometry This manual is not just a set of tasks, but a whole world in which the reader immerses himself in order not only to solve equations, but also to understand the essence of trigonometric functions and their application in various fields of science and technology. Author, A. D. Nachman, known for his ability to explain even the most difficult topics His style of presentation is clear and logical, which makes the material understandable to a wide audience. The book will be especially useful for students, schoolchildren and everyone who is preparing for exams in mathematics, as well as for those who want to refresh their knowledge or delve into the study of trigonometry. If you are looking for a tutorial that will help you not only remember the formulas, but also teach how to apply them in practice, then this publication will be your faithful assistant. In Trigonometry in Exercises and Tasks, Nachman offers the reader a variety of tasks, ranging from simple to more complex, which allows you to gradually increase the level of complexity. Each chapter contains a theoretical part, which is accompanied by many examples and tasks for independent decision. This makes the book ideal for self-study, as well as for use in classes in educational institutions. The manual covers all key aspects of trigonometry: from the definition of trigonometric functions to their graphs and applications in various tasks. The topics raised in the book range from the basics of trigonometry to more complex concepts such as triangle solving, trigonometric equations, and inequalities. Nachman focuses on the practical application of trigonometry in physics, engineering, and other sciences, making the material particularly relevant to engineering students. The reader will be able to see how trigonometry is used in real-world tasks, which adds additional value to the material being studied. The book also raises important questions about problem-solving techniques and how to correctly interpret the results. Nachman shares with the reader not only formulas, but also strategies that will help in solving problems. This makes the manual not just educational material, but a real guide to the world of trigonometry. If you are interested in mathematics, physics or engineering, this book will be a real discovery for you. It is suitable for both high school students and students, as well as for anyone who wants to improve their skills in solving mathematical problems. The manual will be useful to those who are preparing for the exam or other exams, as well as those who want to deepen their knowledge in the field of trigonometry .. In conclusion, it is worth noting that “Trigonometry in exercises and tasks” is not just a textbook, but a whole set of knowledge that will help you not only to master trigonometry, but also to love it. Nachman A. D. created a manual that will become your reliable companion in the world of mathematics, and will give you confidence in solving even the most difficult problems If you are looking for a quality tutorial on trigonometry, this edition should definitely take a place on your shelf.