nguyen ham va tich phan luong giac

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huyngoca10

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phuongthuy_girltn

[TEX]I=\int_{}^{}tan^6xdx = \int_{}^{}tan^4xd(tanx) - \int_{}^{}tan^2xd(tanx) + d(tanx) - x = \frac{tan^5x}{5} - \frac{tan^3x}{3} + \frac{1}{cos^2x} - x +C [/TEX]
[TEX]I = \int_{}^{}cos^3x.sin8xdx = \int_{}^{} (1-sin^2x)sin8xd(sinx) ... [/TEX]
 
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