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定义法画抛物线
Author:
任吉
GeoGebra
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比較五件物件的重量
第八周作业2
球体的截面
第八周作业1
折扣
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平移
BkD_act15_03c
Simultaneous Equations (Linear and quadratic)
內心
旁心
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Cylinder
Trapezium
Power Functions
Statistical Characteristics
Piecewise Functions