00)ABC三角形的顶点B(0,0),B(5,0),AB边上的中线长|CD|=3,则顶点A的轨迹方程为?平面上有A(-2,y),B(0,y/2),C(x,y),若向量AB垂直BC,则动点C的轨迹方程?第二个是C
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![00)ABC三角形的顶点B(0,0),B(5,0),AB边上的中线长|CD|=3,则顶点A的轨迹方程为?平面上有A(-2,y),B(0,y/2),C(x,y),若向量AB垂直BC,则动点C的轨迹方程?第二个是C](/uploads/image/z/2615549-5-9.jpg?t=00%EF%BC%89ABC%E4%B8%89%E8%A7%92%E5%BD%A2%E7%9A%84%E9%A1%B6%E7%82%B9B%EF%BC%880%2C0%EF%BC%89%2CB%EF%BC%885%2C0%EF%BC%89%2CAB%E8%BE%B9%E4%B8%8A%E7%9A%84%E4%B8%AD%E7%BA%BF%E9%95%BF%7CCD%7C%3D3%2C%E5%88%99%E9%A1%B6%E7%82%B9A%E7%9A%84%E8%BD%A8%E8%BF%B9%E6%96%B9%E7%A8%8B%E4%B8%BA%3F%E5%B9%B3%E9%9D%A2%E4%B8%8A%E6%9C%89A%EF%BC%88-2%2Cy%EF%BC%89%2CB%EF%BC%880%2Cy%2F2%EF%BC%89%2CC%28x%2Cy%29%2C%E8%8B%A5%E5%90%91%E9%87%8FAB%E5%9E%82%E7%9B%B4BC%2C%E5%88%99%E5%8A%A8%E7%82%B9C%E7%9A%84%E8%BD%A8%E8%BF%B9%E6%96%B9%E7%A8%8B%3F%E7%AC%AC%E4%BA%8C%E4%B8%AA%E6%98%AFC)
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