S
sonsac99


[TEX]\int\limits_{-1}^{3}(x^3-3x^2+2)^{2011}dx[/TEX]
can gap nhanh nhe may ban
[TEX]\int\limits_{0}^{pi/4}\frac{1}{sin^2x+2sinxcosx-cos^2x}dx[/TEX]
can gap nhanh nhe may ban
[TEX]\int\limits_{0}^{pi/4}\frac{1}{sin^2x+2sinxcosx-cos^2x}dx[/TEX]
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