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naughtygirl5493
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
lim(3^n+3^2n+3^(3n+1))/(5^n+7(can5)^n)
lim(3(n+2)!+(n+1)!)/(2(n+3)!-(n+1)!)
thong cam nha, minh khong bit go may cong thuc toan
lim(3(n+2)!+(n+1)!)/(2(n+3)!-(n+1)!)
thong cam nha, minh khong bit go may cong thuc toan