6789| 8
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[不等式] $\frac{1}{1^2}+\frac{1}{3^2}+\cdots+\frac{1}{(2n-1)^2} < \frac{5}{4}$ |
Author|
郝酒
Posted 2015-6-16 16:09
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Author|
郝酒
Posted 2015-6-18 13:08
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Author|
郝酒
Posted 2015-6-18 20:58
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Author|
郝酒
Posted 2015-6-19 23:47
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