如图,在三角形ABC中,角BAC=120度,AB=AC,点D在BC上,且BD=BA,点E在BC的延长线上,且CE=CA1.试求角DAE的度数2.如果把试题中AB=AC的条件去掉,其余条件不变,那么角DAE的度数会改变吗?为什么?3.若角BAC等于a,其
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![如图,在三角形ABC中,角BAC=120度,AB=AC,点D在BC上,且BD=BA,点E在BC的延长线上,且CE=CA1.试求角DAE的度数2.如果把试题中AB=AC的条件去掉,其余条件不变,那么角DAE的度数会改变吗?为什么?3.若角BAC等于a,其](/uploads/image/z/1004089-49-9.jpg?t=%E5%A6%82%E5%9B%BE%2C%E5%9C%A8%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E4%B8%AD%2C%E8%A7%92BAC%3D120%E5%BA%A6%2CAB%3DAC%2C%E7%82%B9D%E5%9C%A8BC%E4%B8%8A%2C%E4%B8%94BD%3DBA%2C%E7%82%B9E%E5%9C%A8BC%E7%9A%84%E5%BB%B6%E9%95%BF%E7%BA%BF%E4%B8%8A%2C%E4%B8%94CE%3DCA1.%E8%AF%95%E6%B1%82%E8%A7%92DAE%E7%9A%84%E5%BA%A6%E6%95%B02.%E5%A6%82%E6%9E%9C%E6%8A%8A%E8%AF%95%E9%A2%98%E4%B8%ADAB%3DAC%E7%9A%84%E6%9D%A1%E4%BB%B6%E5%8E%BB%E6%8E%89%2C%E5%85%B6%E4%BD%99%E6%9D%A1%E4%BB%B6%E4%B8%8D%E5%8F%98%2C%E9%82%A3%E4%B9%88%E8%A7%92DAE%E7%9A%84%E5%BA%A6%E6%95%B0%E4%BC%9A%E6%94%B9%E5%8F%98%E5%90%97%3F%E4%B8%BA%E4%BB%80%E4%B9%88%3F3.%E8%8B%A5%E8%A7%92BAC%E7%AD%89%E4%BA%8Ea%2C%E5%85%B6)
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