Question

Решите срочно
-2sin x/18=1

Answer 1

$-2\sin\frac{x}{18} =1\\ \sin \frac{x}{18} =-0.5\\ \frac{x}{18} =(-1)^{k+1}\cdot\frac{\pi}{6}+\pi k,k \in \mathbb{Z}~~|\cdot 18\\ \\ x=(-1)^{k+1}\cdot 3\pi +18\pi k,k \in \mathbb{Z}$