AD是三角形ABC角BAC角平分线,AD中垂线和BC延长线交于C.求证DE^2=BE*CE是AD中垂线和BC延长线交于E
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![AD是三角形ABC角BAC角平分线,AD中垂线和BC延长线交于C.求证DE^2=BE*CE是AD中垂线和BC延长线交于E](/uploads/image/z/6871037-5-7.jpg?t=AD%E6%98%AF%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E8%A7%92BAC%E8%A7%92%E5%B9%B3%E5%88%86%E7%BA%BF%2CAD%E4%B8%AD%E5%9E%82%E7%BA%BF%E5%92%8CBC%E5%BB%B6%E9%95%BF%E7%BA%BF%E4%BA%A4%E4%BA%8EC.%E6%B1%82%E8%AF%81DE%5E2%3DBE%2ACE%E6%98%AFAD%E4%B8%AD%E5%9E%82%E7%BA%BF%E5%92%8CBC%E5%BB%B6%E9%95%BF%E7%BA%BF%E4%BA%A4%E4%BA%8EE)
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