Question

Решите срочно
-2sin x/18=1

Answer 1

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