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包絡橢圓
Author:
Wu Xiao-Ren
Topic:
Ellipse
操作說明：
1. 拖曳A點，則切線s可以包絡出橢圓(所有切點的軌跡).
GeoGebra
New Resources
異分母分數減法
【案例】圆柱体内放置一个大球六个小球
兩組對邊相等的四邊形
拼砌四邊形
柱體建築師
Discover Resources
a sin(bx+c) + d 的圖形
高中二年級平面向量
正方体展开图
Copy of Quadratic Graph - QESOSASS
折纸成抛物线
Discover Topics
Addition
Tree Diagrams
Trapezoid
Boxplot
Rectangle