抛物线y=(x-3)(x+1)与x轴交于A,B两点(点A在点B左侧),于y轴交于点C,点D为顶点.⑴求点B及点D的坐标;⑵连结BD,CD,抛物线的对称轴与x轴交于点E.①若线段BD上一点P,使∠DCP=∠BDE,求点P的坐标
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![抛物线y=(x-3)(x+1)与x轴交于A,B两点(点A在点B左侧),于y轴交于点C,点D为顶点.⑴求点B及点D的坐标;⑵连结BD,CD,抛物线的对称轴与x轴交于点E.①若线段BD上一点P,使∠DCP=∠BDE,求点P的坐标](/uploads/image/z/5303054-38-4.jpg?t=%E6%8A%9B%E7%89%A9%E7%BA%BFy%3D%EF%BC%88x-3%EF%BC%89%EF%BC%88x%2B1%EF%BC%89%E4%B8%8Ex%E8%BD%B4%E4%BA%A4%E4%BA%8EA%2CB%E4%B8%A4%E7%82%B9%EF%BC%88%E7%82%B9A%E5%9C%A8%E7%82%B9B%E5%B7%A6%E4%BE%A7%EF%BC%89%2C%E4%BA%8Ey%E8%BD%B4%E4%BA%A4%E4%BA%8E%E7%82%B9C%2C%E7%82%B9D%E4%B8%BA%E9%A1%B6%E7%82%B9.%E2%91%B4%E6%B1%82%E7%82%B9B%E5%8F%8A%E7%82%B9D%E7%9A%84%E5%9D%90%E6%A0%87%EF%BC%9B%E2%91%B5%E8%BF%9E%E7%BB%93BD%2CCD%2C%E6%8A%9B%E7%89%A9%E7%BA%BF%E7%9A%84%E5%AF%B9%E7%A7%B0%E8%BD%B4%E4%B8%8Ex%E8%BD%B4%E4%BA%A4%E4%BA%8E%E7%82%B9E.%E2%91%A0%E8%8B%A5%E7%BA%BF%E6%AE%B5BD%E4%B8%8A%E4%B8%80%E7%82%B9P%2C%E4%BD%BF%E2%88%A0DCP%3D%E2%88%A0BDE%2C%E6%B1%82%E7%82%B9P%E7%9A%84%E5%9D%90%E6%A0%87)
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