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Консультация № 200439
16.03.2021, 11:31
0.00 руб.
0
1
1
Здравствуйте, уважаемые эксперты! Прошу вас ответить на следующий вопрос: Проверить, является ли функция z=x(x/y)^2-x^2-y^2 решением уравнения x*dz/dx+y*dz/dy=z-x^2-y^2
Обсуждение
то 
После подстановки в заданное уравнение соответствующих выражений получим
Форма ответа
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