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选修一P116-14求椭圆平行弦中点的轨迹
Author:
jjx01
Topic:
Ellipse
GeoGebra
New Resources
拼砌四邊形
兩位數加法
找出對稱軸
三位數除以一位數(二)
異分母分數減法
Discover Resources
兩個骰子的點數和
橢圓動畫
畢氏定理變裝證明
三節棍
七巧板綜合的副本
Discover Topics
Algebra
Histogram
Intersection
Pyramid
Conic Sections