解题方法
1 . 著名数学定理 “勾股定理” 的一个特例是 “勾3股4弦5 ”,我国的西周时期数学家商高曾经和周公讨论过“勾3股4弦5 ”的问题, 比欧洲的毕达哥拉斯发现勾股定理早500多年,如图,在矩形
中,
满足“勾3股4弦5 ”,设
,
为线段
上的动点, 且满足
,若
, 则
( )
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3175baa49394a54b46bda191a7f88a03.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/608e8ffca55241587e756947dfd081ec.png)
![](https://img.xkw.com/dksih/QBM/2022/6/22/3006931270492160/3008109153796096/STEM/b5cc3ffd59034130ac4a069b236ab2bd.png?resizew=245)
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