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Sine Wave and Circle
Author:
吳福盛
GeoGebra
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常见四边形是否是双心四边形
第八周作业
比較五件物件的重量
撒针估算面积实验
双心四边形
Discover Resources
TESTTT
圓錐曲線---橢圓
工作紙題3
最簡分數
congruent (SSS) 2
Discover Topics
Differential Calculus
Subtraction
Calculus
Ellipse
Coordinates