Mathematics. Smart Collection of Problems

This book is for you, high school students and teachers. It will help you prepare for the Unified State Exam (USE) in mathematics. It contains more than 400 original problems with detailed solutions and answers. Among them, there are fun problems. There are tricky ones, with unexpected solutions, where the answer is not what it seems at first glance. And most importantly, there are explanations with examples from all the topics of the USE in mathematics. Including new ones that will appear in the exam this year. In order to solve USE problems, you need to know the theory excellently. But what to do if you forget something? QR codes on the pages of the book will help you. By following them, you can review theorems and formulas, learn more about solving techniques, and watch instructional videos. If you are a teacher or a tutor, you will find sets of tasks for tests and trial USE, with solutions and answers. The tasks are formulated to work on the most challenging topics of the USE in mathematics and to warn about common mistakes in the exam. The author of most of the problems in the collection is Anna Malkova. A mathematics teacher with over 25 years of experience, preparing high school students for the USE since its inception. Anna Malkova conducts an online preparatory course for the USE and a YouTube channel, records video courses, writes books on mathematics - in general, she helps high school students pass the USE with 90+ points.