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用平面截圆锥
Author:
吕胜
GeoGebra
New Resources
【案例】2018年全国1卷理科12题
找出對稱軸
判斷球體
畫出對稱圖形
兩組對邊相等和有直角的四邊形
Discover Resources
反射定律 Law of Reflection
動態正方形(未完成)
數列
arithmetic operation
三角形全等的理由 – 題3的副本
Discover Topics
Logic
Trigonometry
Cuboid
Curve Sketching
Median Value