Tìm kiếm
Bí mật
1. $(\frac{1}{\sqrt{5}-\sqrt{2}}-\frac{1}{\sqrt{5}+\sqrt{2}}+1):\frac{1}{\sqrt{2-1}}$
2. $\frac{1}{\sqrt{4}+\sqrt{3}}+\frac{1}{\sqrt{3}+\sqrt{2}}+\frac{1}{\sqrt{2}+1}$
3. $\frac{1}{1+\sqrt{2}}+\frac{1}{\sqrt{2}+\sqrt{3}}+...+\frac{1}{\sqrt{2013}+\sqrt{2014}}$
- Yagami Raito yêu thích
