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圓與直線
Author:
RueiYi
GeoGebra
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兩位數加法
【案例】2018年全国1卷理科12题
拼砌四邊形
兩位數除以一位數（一）
GeoGebra笔记功能体验课件
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中考数学压轴题大放送之十四
鑲嵌圖形-1
BEES定理2
-3/2 ≤ cosα + cosβ + cosγ ≤ 3
比較角的大小(直接比較)
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Functions
Planes
Trigonometric Functions
Intersection
Inequalities