L
loctay94


[TEX]\int_{1}^{2}(x+1-\frac{1}{x^2})e^(x+\frac{1}{x})dx[/TEX]
[TEX]\int_{1}^{2}(x+1-\frac{1}{x})e^(x+\frac{1}{x})dx[/TEX]
..............................................................................................................................................
.............. (^_^).e^ nhe cac ban
[TEX]\int_{1}^{2}(x+1-\frac{1}{x})e^(x+\frac{1}{x})dx[/TEX]
..............................................................................................................................................
.............. (^_^).e^ nhe cac ban
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