V
vanmanh2001


Cho a,b,c phân biệt T/m
a+b+c=1
ab+bc+ac>0
TìmMin $P = 2(\sqrt{\dfrac{2}{(a-b)^2} + \dfrac{2}{(b-c)^2}} + \dfrac{1}{|c-a|}) + \dfrac{5}{\sqrt{ab+bc+ac}}$
a+b+c=1
ab+bc+ac>0
TìmMin $P = 2(\sqrt{\dfrac{2}{(a-b)^2} + \dfrac{2}{(b-c)^2}} + \dfrac{1}{|c-a|}) + \dfrac{5}{\sqrt{ab+bc+ac}}$