M
meomiutiunghiu
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
Chứng minh :
$\sqrt{2} + \sqrt{6} + \sqrt{12} + \sqrt{20} + \sqrt{30} + \sqrt{42} < 24$
$\sqrt{2} + \sqrt{6} + \sqrt{12} + \sqrt{20} + \sqrt{30} + \sqrt{42} < 24$
Last edited by a moderator: