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Aluminiumor 发表于 2024-10-24 11:53 $$x\in(0,\sqrt{3}),-\frac{x^4}{2}-\frac{x^3}{x^2-3}=\frac{x^3(x-1)^2(x+2)}{2(3-x^2)}\geq0$$ $$\sum\f ...
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kuing 发表于 2024-10-24 16:34 上次 forum.php?mod=viewthread&tid=12696 这帖写的,楼主是完全没学会 ...
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