$\dfrac{\sqrt{(a^{2^{}}}+b^{2})(b^{2}+c^{2})(c^{2}+a^{2})}}}{abc}}+\dfrac{4(ab+bc+ca)}a^{2}+b^{2}}+c^{2}){}\geq 8$
Edited by perfectstrong, 08-07-2011 - 09:56.
Edited by perfectstrong, 08-07-2011 - 09:56.
Bạn gõ lại latex đi mình chẳng hiểu gìcho a,b,c >0.cmrang
\dfrac{\sqrt{(a^{2^{}}}+b^{2})(b^{2}+c^{2})(c^{2}+a^{2})}}}{abc}{}+\dfrac{4(ab+bc+ca)}a^{2}+b^{2}}+c^{2}){}\geq 8
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