Помогите решить тригонометрическое уравнение!! cos2x-sqrt(2)cos(3pi/2 + x)-1=0 - №16119317

Помогите решить тригонометрическое уравнение!!
cos2x-sqrt(2)cos(3pi/2 + x)-1=0
- Предмет:
  Алгебра
- Автор:
  coopergwnz
- 5 лет назад

Ответы 1

Применена формула косинуса двойного угла
- Автор:
  bernarda7mkj
- 5 лет назад
- 0
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