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ycps4a1
Author:
Chingmc
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雙曲線2
雙曲線1-焦點法
雙曲線1 交點法
凸透镜成像
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gjzbh 矩陣與遞迴關係（3階）
立體三角測量(例五)
trigonometric ratios
探究角速度与初相位
橢圓
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Random Experiments
Normal Distribution
Surface
Parabola
Difference and Slope
