梯形ABCD中,AB平行于CD,AD=DC=BC,角DAB=60度,E是对角线AC延长线上一点,F是AD延长线上一点,且EB垂直于AB,EF垂直于AF.(1)当CE=1时,求三角形BCE的面积,(2)求证,BD=EF+CE
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![梯形ABCD中,AB平行于CD,AD=DC=BC,角DAB=60度,E是对角线AC延长线上一点,F是AD延长线上一点,且EB垂直于AB,EF垂直于AF.(1)当CE=1时,求三角形BCE的面积,(2)求证,BD=EF+CE](/uploads/image/z/2502438-6-8.jpg?t=%E6%A2%AF%E5%BD%A2ABCD%E4%B8%AD%2CAB%E5%B9%B3%E8%A1%8C%E4%BA%8ECD%2CAD%3DDC%3DBC%2C%E8%A7%92DAB%3D60%E5%BA%A6%2CE%E6%98%AF%E5%AF%B9%E8%A7%92%E7%BA%BFAC%E5%BB%B6%E9%95%BF%E7%BA%BF%E4%B8%8A%E4%B8%80%E7%82%B9%2CF%E6%98%AFAD%E5%BB%B6%E9%95%BF%E7%BA%BF%E4%B8%8A%E4%B8%80%E7%82%B9%2C%E4%B8%94EB%E5%9E%82%E7%9B%B4%E4%BA%8EAB%2CEF%E5%9E%82%E7%9B%B4%E4%BA%8EAF.%EF%BC%881%29%E5%BD%93CE%3D1%E6%97%B6%2C%E6%B1%82%E4%B8%89%E8%A7%92%E5%BD%A2BCE%E7%9A%84%E9%9D%A2%E7%A7%AF%2C%EF%BC%882%EF%BC%89%E6%B1%82%E8%AF%81%2CBD%3DEF%2BCE)
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