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凸透鏡成像
Author:
dunst_1
Topic:
Mathematics
GeoGebra
New Resources
四邉形 (四年級) 教師版
拼砌四邊形
三位數除以一位數（二）
異分母分數減法
找出對稱軸
Discover Resources
正四面體對邊向量垂直作圖證明
gsx-a01-06 數線上的點
gjh-g03-01 和的平方公式
Question 1
椭圆的定义
Discover Topics
Area
Probability
Expected Value
Multiplication
Triangles