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利用Geogebra說明y=ax2＋bx＋c圖形性質
Author:
Galen_1
GeoGebra
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兩位數加法
錐體建築師
判斷球體
兩組對邊相等和有直角的四邊形
異分母分數減法
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「相似三角形」任务4
task2
Drag the red dots, see the area ratio of EHFG to ABCD
五角星
y=ax^2的繪圖
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Expected Value
Quadratic Equations
Linear Regression
Tangent Function
Upper and Lower Sum or Riemann Sum