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动态专题—角度旋转
Author:
刘元平
GeoGebra
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找出對稱軸
畫出對稱圖形
兩位數除以一位數（一）
錐體建築師
球體建築師
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HW3.NationalFlag
正五角錐
ＡＡＡ與ＳＳＡ不一定全等
Problem1:(md+me+mf)/(ad+be+cf)=a
两角和的正弦公式
Discover Topics
Mathematics
Tree Diagrams
Trigonometric Functions
Curve Sketching
Logarithm