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[不等式] a+b=1,求$\frac{8}{a^2}+\frac{1}{b^2}$的最小值 |
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realnumber
Posted 2021-5-31 15:11
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妙不可言,不明其妙,不着一字,各释其妙!
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2025-6-6 16:37 GMT+8
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