如图,已知与x轴交于点A(1,0)和B(5,0)的抛物线l1的顶点为C(3,4),抛物线l2与l1关于x轴对称,顶点为C'. (3)在l2上是否存在点M,使△ABM是以AB为斜边且一个角为30度的RT△?若存在,求M坐标,
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![如图,已知与x轴交于点A(1,0)和B(5,0)的抛物线l1的顶点为C(3,4),抛物线l2与l1关于x轴对称,顶点为C'. (3)在l2上是否存在点M,使△ABM是以AB为斜边且一个角为30度的RT△?若存在,求M坐标,](/uploads/image/z/8008383-39-3.jpg?t=%E5%A6%82%E5%9B%BE%2C%E5%B7%B2%E7%9F%A5%E4%B8%8Ex%E8%BD%B4%E4%BA%A4%E4%BA%8E%E7%82%B9A%EF%BC%881%2C0%EF%BC%89%E5%92%8CB%EF%BC%885%2C0%EF%BC%89%E7%9A%84%E6%8A%9B%E7%89%A9%E7%BA%BFl1%E7%9A%84%E9%A1%B6%E7%82%B9%E4%B8%BAC%EF%BC%883%2C4%EF%BC%89%2C%E6%8A%9B%E7%89%A9%E7%BA%BFl2%E4%B8%8El1%E5%85%B3%E4%BA%8Ex%E8%BD%B4%E5%AF%B9%E7%A7%B0%2C%E9%A1%B6%E7%82%B9%E4%B8%BAC%26%2339%3B.++++++++%283%29%E5%9C%A8l2%E4%B8%8A%E6%98%AF%E5%90%A6%E5%AD%98%E5%9C%A8%E7%82%B9M%2C%E4%BD%BF%E2%96%B3ABM%E6%98%AF%E4%BB%A5AB%E4%B8%BA%E6%96%9C%E8%BE%B9%E4%B8%94%E4%B8%80%E4%B8%AA%E8%A7%92%E4%B8%BA30%E5%BA%A6%E7%9A%84RT%E2%96%B3%3F%E8%8B%A5%E5%AD%98%E5%9C%A8%2C%E6%B1%82M%E5%9D%90%E6%A0%87%2C)
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