\(\Leftrightarrow sin\left(\frac{\pi}{2}-\frac{\pi}{2}-2x\right)+\sqrt{3}cos2x=2\)
\(\Leftrightarrow\sqrt{3}cos2x-sin2x=2\)
\(\Leftrightarrow\frac{\sqrt{3}}{2}cos2x-\frac{1}{2}sin2x=1\)
\(\Leftrightarrow cos\left(2x+\frac{\pi}{6}\right)=1\)
\(\Leftrightarrow2x+\frac{\pi}{6}=k2\pi\)
\(\Leftrightarrow x=-\frac{\pi}{12}+k\pi\)
Nguyễn Việt Lâm anh re ib e hoi xiu đc k ah?? em camown a