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圆锥与圆锥曲线
Author:
陈宜红
Topic:
Cone
,
Conic Sections
GeoGebra
New Resources
活动三：应用性质
双心四边形
第八周作业3
正方形雪花图案
平行線的判定
Discover Resources
美麗的彩虹骨牌
弦切角是圓心角的一半
優良作品2(季緯)
複合不平等
外心(劉虹圻 高二三26)
Discover Topics
Arithmetic
Rhombus
Planes
Trigonometric Functions
Prism