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Консультация № 186904
07.12.2012, 09:49
87.12 руб.
0
3
1
Здравствуйте, уважаемые эксперты! Прошу вас помочь с решением следующей задачи:
Решить систему по правилу Крамера:
Спасибо!
Решить систему по правилу Крамера:
Спасибо!
Обсуждение
07.12.2012, 11:25
общий
это ответ
Здравствуйте, Посетитель - 369100!
Для решения данной системы уравнений необходимо вычислить определитель её матрицы:
и четыре определителя при неизвестных, которые получаются при замене столбцов определителя матрицы системы столбцом свободных членов
После этого искомые неизвестные находятся как частное от деления определителя при этой неизвестной на определитель матрицы системы.
Чтобы автоматизировать рутинные вычисления и избежать ошибок, целесообразно использовать средства вычислительной техники.
Вы можете загрузить по этой ссылке электронную таблицу MS Excel с решением задачи.
Ответ: x1 = 1/3, x2 = -2/3, x3 = 1, x4 = 4/3.
С уважением.
Для решения данной системы уравнений необходимо вычислить определитель её матрицы:
и четыре определителя при неизвестных, которые получаются при замене столбцов определителя матрицы системы столбцом свободных членов
После этого искомые неизвестные находятся как частное от деления определителя при этой неизвестной на определитель матрицы системы.
Чтобы автоматизировать рутинные вычисления и избежать ошибок, целесообразно использовать средства вычислительной техники.
Вы можете загрузить по этой ссылке электронную таблицу MS Excel с решением задачи.
Ответ: x1 = 1/3, x2 = -2/3, x3 = 1, x4 = 4/3.
С уважением.
Об авторе:
Facta loquuntur.
Facta loquuntur.
07.12.2012, 15:35
общий
Адресаты:
Добрый день! 
В первой строке определителя матрицы системы у Вас небольшая ошибка.
Все-таки проверка найденного решения оказывается очень полезной.
В первой строке определителя матрицы системы у Вас небольшая ошибка.
Все-таки проверка найденного решения оказывается очень полезной.
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