注:此题无图抛物线y=a(x+6)²-3与x轴相交于AB两点,与y轴相交于C,D为抛物线的顶点,直线DE垂直于x轴,垂足为E,AE²=3DE1:2:P为直线DE上的一动点,以PC为斜边构造直角三角形,使直角顶点落在x
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![注:此题无图抛物线y=a(x+6)²-3与x轴相交于AB两点,与y轴相交于C,D为抛物线的顶点,直线DE垂直于x轴,垂足为E,AE²=3DE1:2:P为直线DE上的一动点,以PC为斜边构造直角三角形,使直角顶点落在x](/uploads/image/z/1853766-54-6.jpg?t=%E6%B3%A8%EF%BC%9A%E6%AD%A4%E9%A2%98%E6%97%A0%E5%9B%BE%E6%8A%9B%E7%89%A9%E7%BA%BFy%3Da%28x%2B6%29%26sup2%3B-3%E4%B8%8Ex%E8%BD%B4%E7%9B%B8%E4%BA%A4%E4%BA%8EAB%E4%B8%A4%E7%82%B9%2C%E4%B8%8Ey%E8%BD%B4%E7%9B%B8%E4%BA%A4%E4%BA%8EC%2CD%E4%B8%BA%E6%8A%9B%E7%89%A9%E7%BA%BF%E7%9A%84%E9%A1%B6%E7%82%B9%2C%E7%9B%B4%E7%BA%BFDE%E5%9E%82%E7%9B%B4%E4%BA%8Ex%E8%BD%B4%2C%E5%9E%82%E8%B6%B3%E4%B8%BAE%2CAE%26sup2%3B%3D3DE1%EF%BC%9A2%EF%BC%9AP%E4%B8%BA%E7%9B%B4%E7%BA%BFDE%E4%B8%8A%E7%9A%84%E4%B8%80%E5%8A%A8%E7%82%B9%2C%E4%BB%A5PC%E4%B8%BA%E6%96%9C%E8%BE%B9%E6%9E%84%E9%80%A0%E7%9B%B4%E8%A7%92%E4%B8%89%E8%A7%92%E5%BD%A2%2C%E4%BD%BF%E7%9B%B4%E8%A7%92%E9%A1%B6%E7%82%B9%E8%90%BD%E5%9C%A8x)
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