名校
解题方法
1 . 为解决城市的拥堵问题,某城市准备对现有的一条穿城公路
进行分流,已知穿城公路
自西向东到达城市中心
后转向
方向,已知
,现准备修建一条城市高架道路
,
在
上设一出入口
,在
上设一出口
,假设高架道路
在
部分为直线段,且要求市中心
与
的距离为
.
![](https://img.xkw.com/dksih/QBM/2020/2/17/2401183906324480/2401767045939200/STEM/09110a905cf44e06b6e268833d5922a5.png?resizew=302)
(1)若
,求两站点
之间的距离;
(2)公路
段上距离市中心![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
处有一古建筑群
,为保护古建筑群,设立一个以
为圆心,
为半径的圆形保护区.因考虑未来道路
的扩建,则如何在古建筑群和市中心
之间设计出入口
,才能使高架道路及其延伸段不经过保护区?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1eb76f88cb973c220cffa1c9c0721a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1eb76f88cb973c220cffa1c9c0721a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55bf0d9510623b443eab082ec60fba85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a65b53c8c23a3133fde0835b404304a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4cfef623a9534b5708df5f95f1760a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e9f7d1272b7344346b58b660aa260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09ecb9867a677cada4e7a936cf8db9c7.png)
![](https://img.xkw.com/dksih/QBM/2020/2/17/2401183906324480/2401767045939200/STEM/09110a905cf44e06b6e268833d5922a5.png?resizew=302)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29ddcedaf720653534a228a82deb9215.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(2)公路
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4cfef623a9534b5708df5f95f1760a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f822ab19f3478edf0270023e10d4e27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93a093fc910e039897e5f4a6a7bd82da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
您最近一年使用:0次
2020-02-18更新
|
643次组卷
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3卷引用:河北省保定市定州市2021-2022学年高二上学期期中数学试题