упростите выражение sin(α+n/2)+2sin(α+n)/cos(α+2n) - №29270461

упростите выражение
sin(α+n/2)+2sin(α+n)/cos(α+2n)
- Предмет:
  Алгебра
- Автор:
  kristopherxksj
- 6 лет назад

Ответы 1

$\frac{Sin( \alpha + \frac{ \pi }{2} )+2Sin( \alpha + \pi )}{Cos( \alpha +2 \pi )} = \frac{Cos \alpha -2Sin \alpha }{Cos \alpha } = 1-2tg \alpha$
- Автор:
  kellyqbbt
- 6 лет назад
- 0
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