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这个没难度吧…… 首先齐次化,等价于 \[x^2+ky^2\leqslant \frac{x^3+2y^3}{x-y},\] 其中 $x>y>0$,然后 ... kuing 发表于 2017-2-17 15:03
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$\LaTeX$ formula tutorial Reply post To last page
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2025-7-15 13:51 GMT+8
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