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三角函数
Author:
Sunshine2018
GeoGebra
New Resources
畫出對稱圖形
拼砌四邊形
球体的体积推导
兩位數加法
第八周作业
Discover Resources
gjh-g02-00 單項乘以兩項差
向量的分解（非垂直）
动圆在定圆上滚动
各種切圓
題 1
Discover Topics
Sine
Scalene Triangles
Distributions
Functions
Hypothesis Testing