M
maihuyenmaiyeu
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
lim (-x)*(can bac hai (4-1/x+1/x^2)=+\infty ?
x..>-\infty
tai sao lai vay?vay doi voi dang nay khi nao thi +vo cung , khi nao la - vo cung
ro rang am nhan duong la am thi phai la - \infty chứ
mong các bangiai thích can kẽ neu can co the cho vd ?@};-@};-@};-@};-@};-@};-
thk nhieu
x..>-\infty
tai sao lai vay?vay doi voi dang nay khi nao thi +vo cung , khi nao la - vo cung
ro rang am nhan duong la am thi phai la - \infty chứ
mong các bangiai thích can kẽ neu can co the cho vd ?@};-@};-@};-@};-@};-@};-
thk nhieu