243| 3
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[不等式] $\frac1a<\frac{2π\tan \left(\frac12π\sqrt{1-8 a}\right)}{\sqrt{1-8 a}}$ |
Comment神奇的是这个8还是最大的
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Author|
hbghlyj
Posted 2025-3-1 03:25
Comment🥺
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