Cho x,y,z>0
CMR: $P=\frac{2x^{2}+xy}{(y+\sqrt{zx}+z)^{2}}+\frac{2y^{2}+yz}{(z+\sqrt{xy}+x)^{2}}+\frac{2z^{2}+zx}{(x+\sqrt{yz}+y)^{2}}\geq 1$
$P=\sum \frac{2x^{2}+xy}{(y+\sqrt{zx}+z)^{2}}\geq 1$
Started By basketball123, 11-01-2016 - 20:31
#2
Posted 11-01-2016 - 20:48
Quoc Tuan Qbdh
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DragonBoy
Cho x,y,z>0
CMR: $P=\frac{2x^{2}+xy}{(y+\sqrt{zx}+z)^{2}}+\frac{2y^{2}+yz}{(z+\sqrt{xy}+x)^{2}}+\frac{2z^{2}+zx}{(x+\sqrt{yz}+y)^{2}}\geq 1$
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