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\[\frac{x^2}y+\frac{y^2}z+\frac{z^2}x=x+y+z+\frac{(x-y)^2}y+\frac{(z-y)^2}z+...\] kuing 发表于 2014-4-23 12:23
$\LaTeX$ formula tutorial Reply post To last page
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2025-7-21 11:47 GMT+8
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