如图,在菱形
中,过点B作
于点M,
于点N,
分别交
于点E、F.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bb350b8e577a7b6712031a3b5b98309.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e2a567ce6cf6140dee90789092342e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c81452a4469b2e36adb6c34dc622b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8ce1475f537b4ad21775bfaa16daa0c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/8/ac622fff-6da2-48d0-8ae0-66549dff516e.png?resizew=197)
更新时间:2023-05-23 08:15:02
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【推荐2】如图,点A,B,C,D在同一直线上,
,
,AE=FD.求证:AB=CD.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15d3439583c11f5713a23311c2b3faed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eee9e9b89278a44b24a1580d8b2ae1fe.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/4/9d592afd-db8e-47eb-8c15-9508fc9ffb11.png?resizew=189)
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解答题-证明题
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【推荐1】如图,在菱形
中,点E、F分别是
和
上的点,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d96a5d40d0aea9f4398ca4d0fe9b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c9f501137809dba21dfab7dd56f68f7.png)
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【推荐2】如图,在菱形ABCD中,点E,F分别是边AB和BC上的点,且BE=BF.求证:∠DEF=∠DFE.
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