Помогите пожалуйста (можно не все задания )дам 40 баллов.ОЧЕЕЕНЬ СРОЧНО

Помогите пожалуйста (можно не все задания )дам 40 баллов.ОЧЕЕЕНЬ СРОЧНО
- Предмет:
  Алгебра
- Автор:
  bbcox
- 5 лет назад

Ответы 1

1. б) и в). Функция убывает до значения -2 и возрастает после него.
2. г). Это очевидно)
3. (-∞;7] убывает, [7;+∞) возрастает
4. Найдем корни:
х²-4х+3=0
х₁х₂=3
х₁+х₂=4
х₁=1, х₂=3.
Так как коеффициент а больше нуля, на промежутке (-∞:1)∪(3;+∞) функция больше нуля, а на промежутке (1;3) - меньше нуля.
Ой всё, больше не могу))
- Автор:
  issachrk0
- 5 лет назад
- 0
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Помогите пожалуйста (можно не все задания )дам 40 баллов.ОЧЕЕЕНЬ СРОЧНО

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