Sin²x+2sin x cos x-3cos²x=0 Sin 2x=sin 6x-sin 4x √1-cosx = sin x - №27730013

Sin²x+2sin x cos x-3cos²x=0
Sin 2x=sin 6x-sin 4x
√1-cosx = sin x
- Предмет:
  Алгебра
- Автор:
  daniel3qp7
- 5 лет назад

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