1)42sin413/sin53 2)30 корень 6 cos (-pi/4) sin (-pi/3) 3)-4cos26/cos154 - №27214456

1)42sin413/sin53
2)30 корень 6 cos (-pi/4) sin (-pi/3)
3)-4cos26/cos154
- Предмет:
  Алгебра
- Автор:
  krueger
- 5 лет назад

Ответы 1

1)42sin413/sin53=42sin(360+53)/sin53=42sin53/sin53=42 2)30 √6 cos (-pi/4) sin (-pi/3)=30√6*√2/2*(-√3/2)=-45 3)-4cos26/cos154=-4cos26/cos(180-26)=-4cos26/(-cos26)=4
- Автор:
  sparkyv2vy
- 5 лет назад
- 0
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