Question

{x<-1,{-x<9. срочно помогите пожалуйста​ Смотреть ответ matilda17562 matilda17562 Ответ: (-9; - 1). Пошаговое объяснение: {x < -1, {-x < 9; {x < -1, { x > - 9; (-9; - 1). Новые вопросы в Математика ПОЖАЛУЙСТА ПОМОГИТЕ ДАЮ 30 БАЛЛОВ! Брати богдан і борис напередодні навчального року купили 26 зошитів у клітинку по 45 к 16 зошитів у лінійку по 60 к … та декілька ручок по 1 грн 20 к. За всю покупку брати заплатили 29,7 грн. Скільки ручок купили хлопці? З пункту А в пункт В авто їде зі швидкістю 50 км/год. Назад вертається з В в А зі шв. 30 км/год. ЯКА СЕРЕДНЯ ШВИДКІСТЬ АВТО ? Відповідь не 40!!!​ Яка із зображених на рисунку прямих паралельна прямій АВ ? ПОЖАЛУЙСТА ПОМОГИТЕ ДАЮ 20 БАЛОВ ​ Яка із зображених на рисунку прямих перпендикулярна до прямої АВ ? ПОЖАЛУЙСТА ТОЧНЫЙ ОТВЕТ!! ДАЮ 20 БАЛЛОВ​ Найдите sin2а, если ctga=7. Предыдущий Следующий Вместе мы знаем больше Этот сайт использует cookies Политика Cookies . Вы можете указать условия хранения и доступ к cookies в своем браузере. 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Answer 1

Извините, но ваш вопрос не совсем понятен. Вероятно, вы хотите получить объяснение для неравенства "{x < -1, -x < 9}" и ответ на него.

Давайте разберемся:

1. {x < -1}: Это означает, что значение переменной x должно быть меньше -1.

2. {-x < 9}: Это означает, что значение переменной -x (также можно записать как x с обратным знаком) должно быть меньше 9.

Теперь объединим эти два неравенства:

1. {x < -1}
2. {-x < 9}

Первое неравенство говорит нам, что x должно быть меньше -1, а второе неравенство говорит, что -x (или x с обратным знаком) должно быть меньше 9. Для того чтобы объединить эти неравенства, мы можем поменять знак второго неравенства, чтобы избавиться от отрицательного знака перед x:

2. {x < -1}
3. {x > -9}

Теперь у нас есть два неравенства, одно из которых говорит, что x должно быть меньше -1, а другое говорит, что x должно быть больше -9. Объединив их, мы получаем интервал, который удовлетворяет обоим условиям:

(-9; -1)

Итак, ответ на ваш вопрос: интервал значений переменной x, который удовлетворяет данным неравенствам, - это (-9; -1).