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Консультация № 62897
16.11.2006, 16:53
0.00 руб.
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2
1
Помогите вычислить градиет в точке:
z=(x-y)^2 в точке М(1;1)
z=(x-y)^2 в точке М(1;1)
Обсуждение
16.11.2006, 18:24
общий
это ответ
Здравствуйте, Drakon77!
Решение.
z(x, y)==(x-y)^2=x^2-2xy-y^2, Dz/Dx=2x-2y=2(x-y), Dz/Dy=-2x-2y=-2(x+y), drad z=2*(x-y)*i-2*(x+y)*j, в точке (1; 1) значение градиента равно 0i-2j=-2j.
Ответ: -2j.
Решение.
z(x, y)==(x-y)^2=x^2-2xy-y^2, Dz/Dx=2x-2y=2(x-y), Dz/Dy=-2x-2y=-2(x+y), drad z=2*(x-y)*i-2*(x+y)*j, в точке (1; 1) значение градиента равно 0i-2j=-2j.
Ответ: -2j.
Об авторе:
Facta loquuntur.
Facta loquuntur.
Форма ответа
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