5 sinx - 2cos^2x - 1=0 тригонометрия - №22861813

5 sinx - 2cos^2x - 1=0
тригонометрия
- Предмет:
  Алгебра
- Автор:
  quincyoahi
- 6 лет назад

Ответы 1

2-2sin^2x+5sinx+1=02sin^2x-5sinx-3=0x1=-1/2 x2=3 - не подхsinx=-1/2x=(-1)^k+1*п/6+Пк
- Автор:
  soler
- 6 лет назад
- 0
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