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a03~x² + y² / 9 + z² / 4 = 1
Author:
黃斌
GeoGebra
New Resources
第八周作业
球体的截面
活动三:应用性质
异形操场
椭圆内切圆链
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mathmathmath
中空柱體
拼砌多邊形
初中数学模型
正四面體碎形
Discover Topics
Upper and Lower Sum or Riemann Sum
Parametric Curves
Scalene Triangles
Coordinates
Real Numbers