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1 . 斜拉桥是鼗梁用若干根斜拉索拉在塔柱上的桥,它由梁、斜拉索和塔柱三部分组成.如图1,这是一座斜拉索大桥,共有10对永久拉索,在索塔两侧对称排列.如图2,已知拉索上端相邻两个锚的间距
均为
,拉索下端相邻两个锚的间距
均为
.最短拉索的锚
,
满足
,
,以
所在直线为
轴,
所在直线为
轴,则最长拉索
所在直线的斜率为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/21/6b191cea-bb63-4deb-b7b3-b83030e6c991.png?resizew=444)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03f4e7daf5c3b0782d28240cb360e055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e7854968bbf6576a1fd9926ee0d4d63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dce9d3351a76738e878db5916ae5bc8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19d4166fee97516ad1b1d4759a8e4ce6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f7b96bcbbfe1a7b1feae58a38cc053b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86c84e2d568e4ffd6e06e9d0aa2016c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d28cbe0b716ea72ce2ae381bfae53a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db883b60884a5af28e081dbafe35d7e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4ee7f4fa805ba914c8d5dca2ea230e8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/21/6b191cea-bb63-4deb-b7b3-b83030e6c991.png?resizew=444)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-04-20更新
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6卷引用:贵州省遵义市第十八中学2022-2023学年高二下学期第一次月考数学试题