Обозначение символа альфа - @ ([email protected][email - вопрос №77409512 от AhhaYakovkeva 02.04.2021 21:22

Question

Математика: Обозначение символа альфа - @ ([email protected][email protected])^2 - ([email protected]@)^2

AhhaYakovkeva · Answer

([email protected] + [email protected])² - ([email protected] - [email protected])² = ([email protected] + [email protected] - [email protected] + [email protected])([email protected] + [email protected] + [email protected] - [email protected]) = [email protected]@ = 4
ответ: 4