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X 0 p. 2cos(x/2-п/6)=√3. Cos2x-3cosx+2 0. Cos2x-3cos(-x)+2=0. 1/Cos2x-3/cosx+2 0.
2cos(x/2-п/6)=√3. Cos2x-3cosx+2 0. Cos2x-3cos(-x)+2=0. 1/Cos2x-3/cosx+2 0.

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