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Консультация № 194633
08.02.2019, 21:01
0.00 руб.
0
3
1
Здравствуйте, уважаемые эксперты! Прошу помощи в следующем вопросе:
1) Отделить корни уравнения x^2 - 4 * cos x = 0 графически.
Корни я вроде как отделил, получилось x1 = -1,202; x2 = 1,202. А вот с уточнением не выходит.
2) Уточнить корни (все!) уравнения методом половинного деления с точностью 0,0001 , указать число разбиений отрезка.
1) Отделить корни уравнения x^2 - 4 * cos x = 0 графически.
Корни я вроде как отделил, получилось x1 = -1,202; x2 = 1,202. А вот с уточнением не выходит.
2) Уточнить корни (все!) уравнения методом половинного деления с точностью 0,0001 , указать число разбиений отрезка.
Обсуждение
08.02.2019, 23:33
общий
Адресаты:
Как Вам удалось с такой точностью отделить корни заданного уравнения?
Об авторе:
Facta loquuntur.
Facta loquuntur.
10.02.2019, 03:40
общий
это ответ
Здравствуйте, Дмитрий М!
Заданная функция чётная, поэтому можно уточнить один корень. Пусть это будет положительное число. Примем в качестве приближённого значения корня
учитывая при этом возрастание заданной функции при 
Из прикреплённого файла видно, что 
Второй корень 
Отрезок был разбит десять раз.
Заданная функция чётная, поэтому можно уточнить один корень. Пусть это будет положительное число. Примем в качестве приближённого значения корня
учитывая при этом возрастание заданной функции при Из прикреплённого файла видно, что Второй корень Отрезок был разбит десять раз.
Прикрепленные файлы:
Об авторе:
Facta loquuntur.
Facta loquuntur.
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