数学轨迹方程已知A(-2,0),B(2,0),点C,点D,满足 → → → →|AC|=2,AD=1/2(AB+AC).求点D的轨迹方程;(2)过点A作直线L交以A、B为焦点的椭圆于M、N两点,线段MN的中点到Y轴的距离为4/5,且直线与
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![数学轨迹方程已知A(-2,0),B(2,0),点C,点D,满足 → → → →|AC|=2,AD=1/2(AB+AC).求点D的轨迹方程;(2)过点A作直线L交以A、B为焦点的椭圆于M、N两点,线段MN的中点到Y轴的距离为4/5,且直线与](/uploads/image/z/11340332-44-2.jpg?t=%E6%95%B0%E5%AD%A6%E8%BD%A8%E8%BF%B9%E6%96%B9%E7%A8%8B%E5%B7%B2%E7%9F%A5A%EF%BC%88-2%2C0%EF%BC%89%2CB%EF%BC%882%2C0%EF%BC%89%2C%E7%82%B9C%2C%E7%82%B9D%2C%E6%BB%A1%E8%B6%B3+%E2%86%92+%E2%86%92+%E2%86%92+%E2%86%92%7CAC%7C%3D2%2CAD%3D1%2F2%EF%BC%88AB%2BAC%EF%BC%89.%E6%B1%82%E7%82%B9D%E7%9A%84%E8%BD%A8%E8%BF%B9%E6%96%B9%E7%A8%8B%EF%BC%9B%EF%BC%882%EF%BC%89%E8%BF%87%E7%82%B9A%E4%BD%9C%E7%9B%B4%E7%BA%BFL%E4%BA%A4%E4%BB%A5A%E3%80%81B%E4%B8%BA%E7%84%A6%E7%82%B9%E7%9A%84%E6%A4%AD%E5%9C%86%E4%BA%8EM%E3%80%81N%E4%B8%A4%E7%82%B9%2C%E7%BA%BF%E6%AE%B5MN%E7%9A%84%E4%B8%AD%E7%82%B9%E5%88%B0Y%E8%BD%B4%E7%9A%84%E8%B7%9D%E7%A6%BB%E4%B8%BA4%2F5%2C%E4%B8%94%E7%9B%B4%E7%BA%BF%E4%B8%8E)
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