椭圆的几何性质（第2课时）椭圆的实际应用

椭圆及其标准方程（第1课时）

Use the Change of Variables Formula in three variables to prove that the volume of the ellipsoid ((x)/(a))^2 ((y)/(b))^2 ((z)/(c))^2=1 is equal to a b c ×the volume of the unit sphere. | Numerade

椭圆的方程和性质

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椭圆是怎么发现的