Переріз та об’єднання множин. Числові проміжки. Алгебра 9 клас

The video was created for distance learning. Theoretical and practical materials are taken from textbooks: 1. "Algebra. Textbook for the 9th grade of general secondary education institutions", authors of the textbook: A. G. Merzlyak, V. B. Polonsky, M. S. Yakir 2. "Algebra. Textbook for the 9th grade of general secondary education institutions", authors of the textbook: Nina Tarasenkova, Iryna Bogatyreva, Oksana Kolomiyets, Zoya Serdyuk 3. "Algebra. Textbook for the 9th grade of general secondary education institutions", authors of the textbook: Oleksandr Ister 4. "Algebra. Textbook for the 9th grade of general secondary education institutions", authors of the textbook: Grigory Bevz, Valentina Bevz The author of the video is a mathematics teacher Tetyana Shch. ✨Support my work: 👉https://send.monobank.ua/jar/YzvRQkiEc 👉https://donatello.to/Tetiana_Shch