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銳角三角函數
Author:
羅驥韡 (Pegasus Roe)
Topic:
Trigonometric Functions
GeoGebra
New Resources
兩位數加法
錐體建築師
画直线等分三角形的面积
三位數除以一位數（二）
找出對稱軸
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長方形與正方形的面積
曲柄搖桿
-1 ≤ cosA cosB cosC ≤ 1/8
Copy of 數線的繪製
球體
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Diagrams
Kite
Equations
LCM and GCD
Distributions