cos (pi+x)=sin (pi\2)пожааааалуйста срочно - №21780600

cos (pi+x)=sin (pi\2)
пожааааалуйста срочно
- Предмет:
  Математика
- Автор:
  jacintoxxlo
- 6 лет назад

Ответы 1

Cos(pi+x)=sin(pi/2)Сos(180+x)=sin180/2Cos(180+x)=sin90Cos(180+x)=1Cos360=1 =>Cos(180+180)=1 x=180
- Автор:
  ayla95
- 6 лет назад
- 0
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