Cho x,y,z>0, $\frac{1}{x}+\frac{1}{y}+\frac{1}{z}=2. CMR \sqrt{x+y+z}\geq \sqrt{x-1}+\sqrt{y-1}+\sqrt{z-1}$
Bđt Bunhiacopxki
Started By NguyenHieuNghia, 15-10-2017 - 07:12
1 user(s) are reading this topic
0 members, 1 guests, 0 anonymous users
