例如图,Rt△ABC中,以AC为直径的圆交 BC于D,M为AD的 中点,刀材的延长线 交AC于E,百尸1 .BC 交BC于E,EG 1 AC 交O口于G求证: EF二EC由①、EG②知‘器 乙LEFEC:EG=EF证法三:在△A脚B中 AM BMsin乙1 sin乙3:AMBM .sin乙lsin乙3①请下载后查看，本文暂不支持在线获取查看简介。‘~.一二乃少口.』_但二Itt凸万I叮口甲代万丁丁=5 For example, in the graph, in Rt △ ABC, the circle with AC diameter is intersected by BC in D, M is the middle point of AD, the extended line of the blade material is AC to E, and the cadaver 1.BC is BC to E, EG 1 AC. O mouth to G certification: EF II EC by 1, EG2 know ’device B LEFEC: EG = EF certification method three: in △ A foot B AM BMsin B1 sin B3: AMBM .sin Bs ls B 31 Download View, this article does not support online access to view profile. ‘~.One or two is less mouthful.』 _ But two Itt convex Wan I 叮 A mouthpiece Wanding Ding =5