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TEDTalks 教育
Terry Moore: 为什么 'x' 代表未知数? | Terry Moore
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为什么 'x' 是未知数的符号?在这个短而有趣的演讲里,Terry Moore 带给我们一个吃惊的答案。
Translated by Sicheng Pan
Reviewed by Si Xie
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