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厚會聚透鏡 Thick Convergent Lens
Author:
W.L. Wong, Albert
GeoGebra
New Resources
正方形雪花图案
撒针估算面积实验
第八周作业3
比較五件物件的重量
第八周作业
Discover Resources
廣義三角函數
三角形外角和
Positive angles & Negative angles
正切與餘切函數
面积解题
Discover Topics
Coordinates
Rational Numbers
Algebra
Tangent Line or Tangent
Root