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三角函數 描點作圖 新版
Author:
宋政蒲
Topic:
Cosine
,
Sine
,
Trigonometric Functions
,
Trigonometry
按下">"即再多畫1點;按下"<"即擦去(退回)1點;按下">>"即一次多畫10點為新增;按下">|"則一次畫完右半段(或左半段)的點。
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椭圆内切圆链
双心四边形
平行線的判定
折扣
球体的截面
Discover Resources
數線(小數的認識)
area
用面積逼近圓周率的副本
尺规作图
初三第十五讲真卷4-23题
Discover Topics
Incircle or Inscribed Circle
Reflection
Isosceles Triangles
Vectors 2D (Two-Dimensional)
Power Functions