$a_{1},a_{2},...,a_{n}>0, a_{1}a_{2}...a_{n}=1$.Tìm min $a_{1}+\frac{a_{2}^{2}}{2}+...+\frac{a_{n}^{n}}{n}$
Edited by duyanh782014, 18-09-2016 - 20:09.
Tìm min $\sum_{k=1}^{n}\frac{a_{k}^{k}}{k}$
Started By duyanh782014, 13-09-2016 - 19:53
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Posted 13-09-2016 - 20:00
duyanh782014
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$a_{1},a_{2},...,a_{n}>0, a_{1}a_{2}...a_{n}=1$.Tìm min $\sum_{k=1}^{n}\frac{a_{k}^{k}}{k}$
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