Cho $P(x)=a_{0}.x^{n}+a_{1}.x^{n-1}+...+a^{n}$ có n nghiệm không âm. Cmr: $a{_{1}}^{2}\geq \frac{2n}{n-1} \times a_{0}.a_{2}$
Cho $\P(x)=a_{0}.x^{n}+a_{1}.x^{n-1}+...+a^{n}$ có n nghiệm không âm
Started By matamune, 02-11-2014 - 10:09
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