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杯子反射光線(包絡)
Author:
陳柄何
Topic:
Curve Sketching
GeoGebra
New Resources
異分母分數減法
四邊形的特性
第八周作业
【案例】2018年全国1卷理科12题
近似值：有效數字
Discover Resources
函数的单调性和导数
version 1
數學傳播39卷4期, 平面幾何公式思考
三角形與六邊形的結合
三角函數值 (特別角)
Discover Topics
Quadrilaterals
Limits
Conic Sections
Indefinite Integral
Hypergeometric Distribution