解题方法
1 . 已知m,
,
,记直线
与直线
的交点为P,点Q是圆C:
上的一点,若PQ与C相切,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8440725e1df5ca0990b572dd84127914.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43db2c39601a998aeba8f76419fb30c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ad8fd1a3be7dbff94c1e585cb05c1a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ac35e70d31f4bde3340e7c93e3cc6f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c25b4d3207ab7c0bc74255ebb9a86f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d44e8bc37ed03f44470762748a8f942a.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2024-05-28更新
|
685次组卷
|
4卷引用:第4题 直线与圆相切的最值问题(压轴小题)
(已下线)第4题 直线与圆相切的最值问题(压轴小题)广东省茂名市高2024届高三下学期高考模拟数学试题广东省茂名市2024届高三下学期第二次综合测试数学试题(已下线)第3套 新高考全真模拟卷(三模重组)
2 . 某学校为了解学生中男生的体重y(单位:kg)与身高x(单位:cm)是否存在线性关系,搜集了7位男生的数据,得到如下表格:
根据表中数据计算得到y关于x的线性回归方程为
,求
.
序号 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
身高x(cm) | 166 | 173 | 174 | 178 | 180 | 183 | 185 |
体重y(kg) | 57 | 62 | 59 | 71 | 67 | 75 | 78 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/916ba6bcd000aa552a7a89385616784c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03c6cf002710b9137f3a88500949f22c.png)
您最近一年使用:0次
解题方法
3 . 已知
是圆
外的动点,过点
作圆
的两条切线,设两切点分别为
,
,当
的值最小时,点
到圆心
的距离为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7f25834d8218c53cb975c2a2fe7442a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59880e470359d8e9faf6ae5ce155cf2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() | C.![]() | D.2 |
您最近一年使用:0次
4 . 已知直线
与直线
相交于点
,则
到直线
的距离的取值集合是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1252726b579cc9f2f1291379916118f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e4c0bba34a5960a354bf249699e7b4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8846bb4afc7ea919accea45f0edffb4.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
5 . 已知直线
与
交于
两点,设弦
的中点为
为坐标原点,则
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b6569761055da9d63d8713581f9cf62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a53672ac527e81794df74719518d366c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da8255e035cfd3c2e84f10b236b6fd97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0c19fa4cd646f4d877c3e58cc346651.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
6 . 平面内互不重合的点
、
、
、
、
、
、
,若
,其中
,2,3,4,则
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04b56e44e4f0424a2b7a45567120a2e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2857fac4963b129d99e79dcb3e13d295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a821e643d5fae24caed0faa6d423dad6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ae2c84ddd51f10d399401cbf91a1217.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c45176df950dfe48b8ca7eac08ee349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14d2f8b944ab6d21b77a1f52a0530654.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2024-02-27更新
|
460次组卷
|
3卷引用:第4题 直线与圆相切的最值问题(压轴小题)
名校
7 . 已知圆
,圆
,直线
上存在点
,过点
向圆
引两条切线
和
,切点是
和
,再过点
向圆
引两条切线
和
,切点是
和
,若
,则实数
的取值范围为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9d7e090b12ffb16e24babaaaa2a5770.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42eea4c13fc3d9033a183c24a8385557.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b47b462c24749cb5d9c540f1d9732153.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42751803931340f648d8edd2883cd15f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
8 . 函数
的定义域是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90839deec02d668e2dbd1c8a9f18d0a3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
9 . 已知角
的顶点为坐标原点,始边为x轴的正半轴,终边过点(3,4),则角
的正切值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
10 . 下列函数图象中,为偶函数的是( )
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次