Помогите Lg cos2x=lg(-cosx) - №22921901

Помогите Lg cos2x=lg(-cosx)
- Предмет:
  Математика
- Автор:
  maynard
- 6 лет назад

Ответы 1

Применены : свойства логарифмов, замена переменной
- Автор:
  pattypennington
- 6 лет назад
- 0
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