worldchampion
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1) \[sin2x = 1 + \sqrt{2}.\cos x + \cos 2x \]
2) \[\sqrt{3}(\sin 2x + \sin x) + \cos 2x - \cos x = 2\]
3) \[3\cot x - \tan x = 8\sin (x-\frac{8\pi}{3})\]
4) \[\sin (2x-\frac{\pi}{4}). \cos 2x - 2\sqrt{2}\sin (x-\frac{\pi}{4})=0\]
2) \[\sqrt{3}(\sin 2x + \sin x) + \cos 2x - \cos x = 2\]
3) \[3\cot x - \tan x = 8\sin (x-\frac{8\pi}{3})\]
4) \[\sin (2x-\frac{\pi}{4}). \cos 2x - 2\sqrt{2}\sin (x-\frac{\pi}{4})=0\]
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