简化北京奥运会主体育场鸟巢的钢结构的俯视图为内外两圈钢骨架,两股价是离心率相同的椭圆,外层椭圆顶点A(右顶点)B(上顶点)想内层椭圆引切线AC BD,设内层椭圆方程为X^2/a^2+Y^2/b^2=1(a>b
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/10 20:32:51
![简化北京奥运会主体育场鸟巢的钢结构的俯视图为内外两圈钢骨架,两股价是离心率相同的椭圆,外层椭圆顶点A(右顶点)B(上顶点)想内层椭圆引切线AC BD,设内层椭圆方程为X^2/a^2+Y^2/b^2=1(a>b](/uploads/image/z/10269229-13-9.jpg?t=%E7%AE%80%E5%8C%96%E5%8C%97%E4%BA%AC%E5%A5%A5%E8%BF%90%E4%BC%9A%E4%B8%BB%E4%BD%93%E8%82%B2%E5%9C%BA%E9%B8%9F%E5%B7%A2%E7%9A%84%E9%92%A2%E7%BB%93%E6%9E%84%E7%9A%84%E4%BF%AF%E8%A7%86%E5%9B%BE%E4%B8%BA%E5%86%85%E5%A4%96%E4%B8%A4%E5%9C%88%E9%92%A2%E9%AA%A8%E6%9E%B6%2C%E4%B8%A4%E8%82%A1%E4%BB%B7%E6%98%AF%E7%A6%BB%E5%BF%83%E7%8E%87%E7%9B%B8%E5%90%8C%E7%9A%84%E6%A4%AD%E5%9C%86%2C%E5%A4%96%E5%B1%82%E6%A4%AD%E5%9C%86%E9%A1%B6%E7%82%B9A%EF%BC%88%E5%8F%B3%E9%A1%B6%E7%82%B9%EF%BC%89B%EF%BC%88%E4%B8%8A%E9%A1%B6%E7%82%B9%EF%BC%89%E6%83%B3%E5%86%85%E5%B1%82%E6%A4%AD%E5%9C%86%E5%BC%95%E5%88%87%E7%BA%BFAC+BD%2C%E8%AE%BE%E5%86%85%E5%B1%82%E6%A4%AD%E5%9C%86%E6%96%B9%E7%A8%8B%E4%B8%BAX%5E2%2Fa%5E2%2BY%5E2%2Fb%5E2%3D1%28a%3Eb)
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