名校
1 . 已知圆C的方程为
,则圆C的半径为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/586631cf97f1d2a17f5c5b7601651ebf.png)
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2024-02-23更新
|
318次组卷
|
2卷引用:浙江省慈溪市2023-2024学年高二上学期期末测试数学试卷
2 . 若方程
表示一个圆,则实数m的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49d495d160713caa0f58b7bcd49a1dcb.png)
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解题方法
3 . 过圆
外一点
作圆
的两条切线,切点为
,则
的最小值为_______________ ,此时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eec03bed5c6a80c31b54acb23930ebdf.png)
________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/287bf04c01636b32de0d73a100dce704.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab79339b23db0c52bda36194abe1a8d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eec03bed5c6a80c31b54acb23930ebdf.png)
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4 . 若直线
与圆
相切,则实数
的值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/097a5a81c58288c759bfccdaef7ecdc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ba497ae7833c24d6b7e1323f66fd56f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
5 . 已知圆
的方程为
,则圆
的半径为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9a693ebea8d72fe10c28e0ac3a61fac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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6 . 已知圆
,则圆心坐标为_________ ;半径为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec6a116d87b056ee812b9621628a5a7c.png)
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7 . 已知圆
的半径为3,则
的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a314323230ca7a3751b93849d4b0cee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
8 . 已知x,y满足
,则
的最大值为 _______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58824f9f1ec40ade500d17a72231c8f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61e3da18d31497e7c2ce5217d139f80e.png)
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2023-12-19更新
|
256次组卷
|
3卷引用:山东省济南市山东实验中学2023-2024学年高二上学期期末模拟数学试题
解题方法
9 . 已知曲线
,曲线
,若
的顶点的
坐标为
,顶点
分别在曲线
和
上运动,则
周长的最小值为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a259dddccc3cfe8f81735cd5834785d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dca1f1e773848ed02ccafa6b7772ad0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cf1bce17440e83c1b735d2954010a2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd94fcfa74db7040a52f2d329247bddb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab609a6574633ebabcff3e73fa862081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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2023-12-18更新
|
303次组卷
|
2卷引用:上海市浦东新区2024届高三上学期期末教学质量检测数学试题
2023高二上·全国·专题练习
名校
10 . 已知方程
表示的圆中,当圆面积最小时,此时
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dd996a3bab44353c2222d3de68d686d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
您最近一年使用:0次