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三角函數關係
Author:
梅
GeoGebra
New Resources
小数 的副本
算柱 (兩位數)
美國國旗 (Claude 版)
Fibonacci Clock
拼砌四邊形
Discover Resources
凸透鏡成像
正弦公式(證明)
Ｍy GGC-1
folding paper by Mr LO WY
工具：PlaneArrows, PlaneText... (v.2)
Discover Topics
Matrices
Vectors 3D (Three-Dimensional)
Tangent Line or Tangent
Interest Calculation
Rotation