Nếu x,y,z>0 thỏa mãn x+y+z=xyz
CMR
xy + xz + y z ≥ √x^2+1 + √ y^2+1 +√z^2+1
Nếu x,y,z>0 thỏa mãn x+y+z=xyz
Started By barcavodich, 04-01-2013 - 10:22
-
This topic is locked
1 user(s) are reading this topic
0 members, 1 guests, 0 anonymous users
