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椭圆内部全等的双椭圆构造.许兴华数学
Author:
许兴华数学
Topic:
Conic Sections
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
判斷球體
球體建築師
球体的体积推导
【案例】2018年全国1卷理科12题
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龍騰4_1-1課例3
Task1
立體圖形的反射對稱
錐體的橫截面
二次函數中常數項所扮演的角色：向上移動的副本
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Matrices
Multiplication
Tangent Function
Surface
Quadrilaterals