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以 Unit Circle 了解 Sine 的正/負的副本
Author:
zhujianpeng
,
gklwong
以 Unit Circle 了解 Sine 的正/負
GeoGebra
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柱體建築師
找出對稱軸
GeoGebra笔记功能体验课件
兩位數加法
判斷球體
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http://www.qsir.org/?p=8853
Introduction to Trigonometry from a Unit Circle
立體圖形
心脏线切线族
正方形
Discover Topics
Linear Regression
Cone
Polygons
Cosine
Continuity