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一元二次不等式測驗
Author:
Chris Cheng
GeoGebra
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【案例】2018年全国1卷理科12题
找出對稱軸
球體建築師
兩位數除以一位數（一）
兩組對邊相等和有直角的四邊形
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waaachen
折扣 例1
T,N,B vectors of space curve.
ｔｏ郁捷
四次函數
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Vectors 2D (Two-Dimensional)
Linear Equations
Addition
Functions
Geometric Distribution