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ie 5
Author:
LAM YU SANG
GeoGebra
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柱體建築師
sanjiaohanshu
四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
直角坐標平面上的旋轉變換
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a>1, y=Log(a,x) and y=a^x 有可能0,1,2交點!?
雪花(碎形)
B6 二次函數
認識菱形的特徵
拋物面的光學性質
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Root
Orthocenter
Volume
Random Experiments
Optimization Problems