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Introduction to Trigonometry from a Unit Circle
Author:
Lam Yat Chun
GeoGebra
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【案例】2018年全国1卷理科12题
兩組對邊相等和有直角的四邊形
sanjiaohanshu
畫出對稱圖形
兩位數除以一位數（一）
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兩物體在時間 0 ~ 1 間，碰撞判斷
直線方程軌跡
ctr to mid perd
多点联动
S3 Ch4.3 例4.6a 三視圖(3D圖)
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Reflection
Statistics
Complex Numbers
Translation
Functions