cos²2x-sin²2x=0 решите уравнение - №6830864

cos²2x-sin²2x=0 решите уравнение
- Предмет:
  Алгебра
- Автор:
  zackarybkiz
- 6 лет назад

Ответы 1

cos²2x-sin²2x=0cos4x=04x=π/2+πk; k∈Zx=π/8+(πk)/4; k∈Z
- Автор:
  pop tartiiz5
- 2 года назад
- 6
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