N
nhinthibiet97
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
với x,y thuộc N* tìm min
A=[tex]\frac{2012}{x+y}[/tex] + [tex]\frac{x}{y+2011}[/tex] + [tex]\frac{y}{2011+2012}[/tex] + [tex]\frac{2011}{2012+x}[/tex]
A=[tex]\frac{2012}{x+y}[/tex] + [tex]\frac{x}{y+2011}[/tex] + [tex]\frac{y}{2011+2012}[/tex] + [tex]\frac{2011}{2012+x}[/tex]