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Консультация № 199447
28.10.2020, 13:16
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Здравствуйте! У меня возникли сложности с таким вопросом:
Задание №1 Решить систему по правилу Крамера (Новые задания)
Задание №1 Решить систему по правилу Крамера (Новые задания)
Обсуждение
01.11.2020, 08:33
общий
01.11.2020, 12:08
это ответ
Здравствуйте, alekseyslobodyanyuk20003!
Решение системы линейных уравнений
по правилу Крамера производится следующим образом: вычисляем определитель системы
если он равен нулю, то система не имеет решения (либо имеет бесконечно много решений), в противном случае вычисляем определители
(полученные заменой соответствующего столбца определителя системы столбцом свободных членов) и решением системы будет x[sub]1[/sub] = [$916$][sub]1[/sub]/[$916$], x[sub]2[/sub] = [$916$][sub]2[/sub]/[$916$], x[sub]3[/sub] = [$916$][sub]3[/sub]/[$916$].
В данном случае для системы
имеем
то есть система имеет имеет решение. Тогда
и x[sub]1[/sub] = -464/(-58) = 8, x[sub]2[/sub] = -232/(-58) = 4, x[sub]3[/sub] = -116/(-58) = 2 - решение системы.
Решение системы линейных уравнений
по правилу Крамера производится следующим образом: вычисляем определитель системы
если он равен нулю, то система не имеет решения (либо имеет бесконечно много решений), в противном случае вычисляем определители
(полученные заменой соответствующего столбца определителя системы столбцом свободных членов) и решением системы будет x[sub]1[/sub] = [$916$][sub]1[/sub]/[$916$], x[sub]2[/sub] = [$916$][sub]2[/sub]/[$916$], x[sub]3[/sub] = [$916$][sub]3[/sub]/[$916$].
В данном случае для системы
имеем
то есть система имеет имеет решение. Тогда
и x[sub]1[/sub] = -464/(-58) = 8, x[sub]2[/sub] = -232/(-58) = 4, x[sub]3[/sub] = -116/(-58) = 2 - решение системы.
Форма ответа
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