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Консультация № 186375
16.06.2012, 12:50
128.14 руб.
16.06.2012, 15:43
0
6
6
Здравствуйте, уважаемые эксперты! Прошу вас ответить на следующий вопрос:
Уважаемые ученые, математики, решите эти задания, извините, что нарушаю правила сайта, если надо доплачу.
Уважаемые ученые, математики, решите эти задания, извините, что нарушаю правила сайта, если надо доплачу.
Обсуждение
16.06.2012, 16:19
общий
это ответ
Здравствуйте, Иван Николаевич!
9.
С уважением.
9.
С уважением.
Об авторе:
Facta loquuntur.
Facta loquuntur.
17.06.2012, 03:33
общий
это ответ
Здравствуйте, Алексеев Иван Николаевич!
8)
Перейдем к полярным координатам:
Получим:
8)
Перейдем к полярным координатам:
Получим:
Об авторе:
"Если вы заметили, что вы на стороне большинства, —
это верный признак того, что пора меняться." Марк Твен
"Если вы заметили, что вы на стороне большинства, —
это верный признак того, что пора меняться." Марк Твен
17.06.2012, 10:32
общий
это ответ
Здравствуйте, Алексеев Иван Николаевич!
12
Частные производные равны 0 в точке (0,0), которая находится на границе, значение функции равно там 0, очевидно, что это минимум.
на прямой x от 0 до 0,5 значение увеличивается до 1/8
на прямой y от 0 до 0,25 значение увеличивается до 1/32
на прямой 2x+4y=1 выразим x через y и подставим в уравнение
x=0.5-2y
z=((0.5-2y)^2+y^2)/2=(5y^2-2y+0,25)/2
квадратичная функция максимум функции достигается на краях
Ответ: 1/8 в точке x=0,5 y=0
12
Частные производные равны 0 в точке (0,0), которая находится на границе, значение функции равно там 0, очевидно, что это минимум.
на прямой x от 0 до 0,5 значение увеличивается до 1/8
на прямой y от 0 до 0,25 значение увеличивается до 1/32
на прямой 2x+4y=1 выразим x через y и подставим в уравнение
x=0.5-2y
z=((0.5-2y)^2+y^2)/2=(5y^2-2y+0,25)/2
квадратичная функция максимум функции достигается на краях
Ответ: 1/8 в точке x=0,5 y=0
Форма ответа
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