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二次函数单调性的符号语言
Author:
杨晓晨
Topic:
Functions
GeoGebra
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龙形曲线-分形龙
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畫三角形 題4b
asqSQ
sin函數相加
三圓外切
正方体3*3堆叠的实时三视图
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Perimeter
Congruence
Equilateral Triangles
Percentages
Angles