K
kissyouchutchut
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[TEX]2cos^2\frac{3x}{2}+4sin^25x+2cos3x(1-cos10x)+2(1+sin4x)+6sinx-(cos2x+cos5x)+4=0 [/TEX]
=((, sợ
~~> sao không ai làm zay ?
=((, sợ
~~> sao không ai làm zay ?
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