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餘弦定理的圖形證明2
Author:
yuchengda
GeoGebra
New Resources
判斷球體
兩組對邊相等的四邊形
【案例】2018年全国1卷理科12题
三位數除以一位數（一）
兩位數加法
Discover Resources
平移
mearm機械手臂模擬
Quiz on Joint Variation 聯變：測驗
題3
莫比乌斯带
Discover Topics
Linear Equations
Ratios
Kite
Symmetry
Histogram