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Консультация № 201566
27.10.2021, 22:04
0.00 руб.
3
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Здравствуйте! У меня возникли сложности с таким вопросом:c решениями уравнений.помогите пожалуйста
Прикрепленные файлы:
Обсуждение
28.10.2021, 04:43
общий
28.10.2021, 06:20
это ответ
Условие : Решить Дифференциальное уравнение y' - 2·y / (x+1) = (x+1)3 (надеюсь, я верно распознал его из Вашей мутной картинки N2).
Решение выполнено в ОнЛайн-решателе на странице mathdf.com/dif/ru (ссылка) . Скриншот-Формулы я сверстал в Windows-апплете Paint . Использованный в решателе Метод Бернулли описан в учебной статье "Линейные диф-уравнения первого порядка. Примеры решений" Ссылка2
Ответ : y = x4/2 + 2·x3 + 5·x2/2 + x + C·(x2/2 + x + 1/2) , где C = Const - некая произвольная константа.
Проверку решения я сделал в популярном приложении Маткад (ссылка3)
Решение каждого Вашего ДифУра занимает много времени даже с использованием ОнЛайн-решателя (чтоб осмыслить процесс решения).
Поэтому, для решения Ваших остальных дифуров создайте отдельные консультации и продублируйте их исходные формулы текстом. Удачи!
Решение выполнено в ОнЛайн-решателе на странице mathdf.com/dif/ru (ссылка) . Скриншот-Формулы я сверстал в Windows-апплете Paint . Использованный в решателе Метод Бернулли описан в учебной статье "Линейные диф-уравнения первого порядка. Примеры решений" Ссылка2
Ответ : y = x4/2 + 2·x3 + 5·x2/2 + x + C·(x2/2 + x + 1/2) , где C = Const - некая произвольная константа.
Проверку решения я сделал в популярном приложении Маткад (ссылка3)
Решение каждого Вашего ДифУра занимает много времени даже с использованием ОнЛайн-решателя (чтоб осмыслить процесс решения).
Поэтому, для решения Ваших остальных дифуров создайте отдельные консультации и продублируйте их исходные формулы текстом. Удачи!
5
Огромное вам спасибо
методом Лагранжа (методом вариации произвольной постоянной).
Имеем
на 
Тогда получим
Форма ответа
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