РЕШИТЕ, ПОЖАЛУЙСТА, УРАВНЕНИЕ cos 2pix=-1 - №17443818

РЕШИТЕ, ПОЖАЛУЙСТА, УРАВНЕНИЕ
cos 2pix=-1
- Предмет:
  Алгебра
- Автор:
  queen beefown
- 6 лет назад

Ответы 1

$cos(2\pi x)=-1\\2\pi x=\pi +2\pi n;n\in Z\\2x=1+2n;n\in Z\\x=\frac{1}2+n;n\in Z$
- Автор:
  enriquestone
- 6 лет назад
- 0
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