coconvuive12
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- Xu
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1. Cho a,b,c>0 Tm \[{a+b+c}\geq{3}\frac{2}\].CMR:
\[\sqrt{{a}^2+{1}\frac{b^2}}+\sqrt{{b^2}+1\frac{c^2}}+\sqrt{{c^2}+1\frac{a^2}\]
2.Cho a,b,c>=0, a+b+c=2.CMR:8(b+c)(b+a)(a+c)<=(2+a)(2+b)(2+c)
\[\sqrt{{a}^2+{1}\frac{b^2}}+\sqrt{{b^2}+1\frac{c^2}}+\sqrt{{c^2}+1\frac{a^2}\]
2.Cho a,b,c>=0, a+b+c=2.CMR:8(b+c)(b+a)(a+c)<=(2+a)(2+b)(2+c)