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Angle of Elevation & Angle of Depression 仰角和俯角
Author:
Alex CHIK
GeoGebra
gMath 互動數學教室
http://www.geogebra.hk
New Resources
GeoGebra笔记功能体验课件
錐體建築師
兩位數除以一位數（二）
異分母分數減法
三位數除以一位數（一）
Discover Resources
三個硬幣的正面數
S3 Polynomials
三角函數sine跟cosine
圓面積的應用
一次函数图像的平移
Discover Topics
Constructions
Scatter Plot
Similarity Transformation or Similarity
Vectors
Algebra