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papy__kut3


1.[TEX]2sin^3x + cos2x - cosx = 0[/TEX]
2.[TEX]cos2x - 5cosx + 4 = 0[/TEX]
3.[TEX]\frac{sin^6x + cos^6x}{\frac sin^2x - cos^2x[/TEX]= 13/8 tg2x
2.[TEX]cos2x - 5cosx + 4 = 0[/TEX]
3.[TEX]\frac{sin^6x + cos^6x}{\frac sin^2x - cos^2x[/TEX]= 13/8 tg2x
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