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直线与椭圆
Author:
lidonglin
焦点到直线的距离之积为定值b方则直线与椭圆相切
GeoGebra
New Resources
球體建築師
拼砌四邊形
算柱 (兩位數)
四邊形的特性
兩組對邊相等的四邊形
Discover Resources
Enneper's surface
gjc100a34 兩三角形重疊面積比
S3 Percentages
拼數咭
线面g
Discover Topics
Limits
Dilation
Tangent Function
Statistical Characteristics
Functions