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Консультация № 191588
28.10.2017, 21:53
0.00 руб.
0
3
1
Здравствуйте! У меня возникли сложности с таким вопросом:
Исследовать на экстремум функцию
z= xy-x^2-y^2+9
Исследовать на экстремум функцию
z= xy-x^2-y^2+9
Обсуждение
28.10.2017, 21:56
общий
Адресаты:
очень подробно расписано
http://www.mathprofi.ru/extremumy_funkcij_dvuh_i_treh_peremennyh.html
http://www.mathprofi.ru/extremumy_funkcij_dvuh_i_treh_peremennyh.html
-стационарная точка
, 
, 
, значит 
Форма ответа
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