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hjoker11


Bài 1: [TEX]\int\limits_0^{pi/6}\frac{cos3x}{cos2x}dx[/TEX]
Bài 2: [TEX]\int\limits_2^{2\sqrt{2}}sqrt{x^2-4}dx[/TEX]
xin cám ơn nhìu
Bài 2: [TEX]\int\limits_2^{2\sqrt{2}}sqrt{x^2-4}dx[/TEX]
xin cám ơn nhìu
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