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Tangents from an External Point
Author:
Y.C.Lee
,
aamtinc
GeoGebra
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找出對稱軸
【案例】2018年全国1卷理科12题
兩位數除以一位數（一）
第八周作业
球體建築師
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商高定理之新月形
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P2 math
相似三角形
等腰三角形 － 等角對等邊的副本
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Vectors 3D (Three-Dimensional)
Logarithmic Functions
Scalene Triangles
Subtraction
Frequency Distribution