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銳角三角函數
Author:
羅驥韡 (Pegasus Roe)
Topic:
Trigonometric Functions
GeoGebra
New Resources
畫出對稱圖形
球體建築師
三位數除以一位數（一）
兩位數加法
拼砌四邊形
Discover Resources
立體圖形的截面
兩外切圓之外公切線作圖法
绝对值加减的图像
畢氏定理(等面積變形法)
內含正方形的正方形
Discover Topics
Mode
Special Points
Limits
LCM and GCD
Vectors 3D (Three-Dimensional)