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Author:
clh
,
Tim Brzezinski
GeoGebra
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折扣
圓的基本性質
平行線的斜率
圓的切線方程
直線的斜率
Discover Resources
Trigonometric Ratios: Sine 三角比：正弦
gjh-a02-hippocrates 月牙
分數乘法
How to draw a decagon with ruler and compasses?
What's wrong
Discover Topics
Similarity Transformation or Similarity
Power Functions
Linear Regression
Linear Equations
Unit Circle