ПОМОГИТЕ РЕШИТЬ!!!3sin(x/3)-sqrt(3)cos(x/3)=3

[latex]3sin (\frac{x}{3})-\sqrt{3}cos(\frac{x}{3})=3[/latex] [latex]\frac{\sqrt{3}}{2}sin(\frac{x}{3})-\frac{1}{2}cos(\frac{x}{3})=\frac{\sqrt{3}}{2}[/latex] [latex]cos \frac{\pi}{6}sin(\frac{x}{3})-sin \frac{\pi}{6}cos(\frac{x}{3})=\frac{\sqrt{3}}{2}[/latex] [latex]sin(\frac{x}{3}-\frac{\pi}{6})=\frac{\sqrt{3}}{2}[/latex] [latex]\frac{x}{3}-\frac{\pi}{6}=(-1)^k*\frac{\pi}{3}+\pi*k[/latex] , k є Z [latex]x=\frac{\pi}{2}+(-1)^k*\pi+3*\pi*k[/latex] k є Z