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cosine formula
Author:
Lam Ho Yeung
GeoGebra
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科氏力 (Coriolis Force)
三角函数 的副本
平行線的判定
直線的斜率:水平變化 & 鉛垂變化
龙形曲线-分形龙
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階梯圖形(二)
gjc100a34 兩三角形重疊面積比
test07
銳角三角:tan
学习科学计算器
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Rectangle
Angles
Complex Numbers
Cone
Tangent Function