S
son_9x1
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
giup em giai bai toan nay voi
\int_{}^{}dx/(x^2 +x +1)
ca bai nay
\int_{}^{}xdx/(x^3 - 1)
\int_{}^{}dx/(x^2 +x +1)
ca bai nay
\int_{}^{}xdx/(x^3 - 1)
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