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二倍角的余弦公式的证明
Author:
桃篮翁
GeoGebra
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三角函数 的副本
漂亮的摇摆曲线
讀磅
【案例】圆柱体内放置一个大球六个小球
祖冲之的期望：内棋与外棋
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猴子攀樹
【範本】資料整理與統計圖表─統計量值
拼貼2
數學電腦繪圖與解題
折线匀速动点工具
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Correlation
Difference and Slope
Reflection
Definite Integral
Logic