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战巡 发表于 2022-7-1 17:40 \[[2x+\sqrt{2-2x^2}]a\ge x-3x^3\] \[a\ge\frac{x-3x^3}{2x+\sqrt{2-2x^2}}\] \[\frac{d}{dx}\frac{x-3x^3 ...
babyqq 发表于 2022-7-1 17:58 那个x怎么解啊
$\LaTeX$ formula tutorial Reply post To last page
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2025-7-15 14:58 GMT+8
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