吴文俊院士利用“出入相补”原理复原了《海岛算经》九题古证.对这一过程变形可得下题,如图,点M是矩形
的对角线
上一点,过点M分别作
,
,点E,F,G,H分别在
,
,
,
上,若
,
,
,则
的长为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/21/cae70e51-b6f7-4fa0-894d-3a2393eb0dc4.png?resizew=136)
更新时间:2023-03-16 16:31:40
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