L
lanhnevergivesup


Giúp mình c/m bài này nhá 
c/m bđt [TEX]\frac{2009}{\sqrt{2010}} + \frac{2010}{\sqrt{2009}} > \sqrt{2009} + \sqrt{2010} [/TEX]
c/m bđt [TEX]\frac{2009}{\sqrt{2010}} + \frac{2010}{\sqrt{2009}} > \sqrt{2009} + \sqrt{2010} [/TEX]