![](https://img.xkw.com/dksih/QBM/2011/7/22/1577378699264000/1577378700591104/STEM/a87fdf7a8d8f4f16ab1432b22f2ad4cb.png?resizew=64)
![](https://img.xkw.com/dksih/QBM/2011/7/22/1577378699264000/1577378700591104/STEM/805487c2c75241769ce48806f18dbc01.png?resizew=88)
![](https://img.xkw.com/dksih/QBM/2011/7/22/1577378699264000/1577378700591104/STEM/cf69be671c3242a6b295ac355c4997f5.png?resizew=101)
![](https://img.xkw.com/dksih/QBM/2011/7/22/1577378699264000/1577378700591104/STEM/805487c2c75241769ce48806f18dbc01.png?resizew=88)
A.相交 | B.相切 | C.相离 | D.不能确定 |
10-11高一·辽宁大连·期末 查看更多[1]
(已下线)大连二十三中学2011学年度高一年级期末测试试卷数学
更新时间:2011-07-22 09:57:40
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【推荐1】如图所示,已知
的半径为5,两弦
相交于
的中点
,且
,
,则圆心到弦
的距离为
![](https://img.xkw.com/dksih/QBM/2017/1/25/1619472216219648/1619472216309760/STEM/0dc3c8eae2084be882c3aad96e42d349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c28d2790a97390935125aa897417f970.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54275b7e571660d0a9e0370fbfe5050b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cd4f42b0c8c1b81c4f2a73bfa67b234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/2017/1/25/1619472216219648/1619472216309760/STEM/0dc3c8eae2084be882c3aad96e42d349.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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【推荐2】对于半径为4的圆在平面上的投影的说法错误的是( )
A.射影为线段时,线段的长为8 |
B.射影为椭圆时,椭圆的短轴可能为8 |
C.射影为椭圆时,椭圆的长轴可能为8 |
D.射影为圆时,圆的直径可能为4 |
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【推荐1】已知点
在直线
上运动,且
,点
在圆
上,则
的面积的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca8605688eecca0f1f8d916657929bae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94745b50f9315e478ab5cc64cf9988ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a10949d80312f0fc9efa3a8e6bd764a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.8 | B.5 | C.2 | D.1 |
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【推荐2】设
为圆
上一点,则点
到直线
距离的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/585033e0bb1bbad7c012172c1d5f7265.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/953b0e963195605a67975c6f8f3caa0c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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