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二次函數（第二階段）
Author:
yen
Topic:
Quadratic Functions
GeoGebra
New Resources
算柱 (兩位數)
兩位數除以一位數（一）
三位數除以一位數（一）
兩組對邊相等和有直角的四邊形
畫出對稱圖形
Discover Resources
多邊形的切割與拼砌
Furstum
腳踏車痕模擬
蝴蝶定理證明1：Steven構造恒等式
切線性質
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Terms
Division
Rotation
Random Variables
Boxplot