名校
解题方法
1 . 已知四棱锥
的底面
是正方形,给出下列三个论断:①
;②
;③
平面
.
(2)在(1)的条件下,若
,求四棱锥
体积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed66431681da1db8f7cb0f40cd19201.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4cd8ba7eb52e38857830162e770f534.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5928c98b341b16d4b5a5b931d2929d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(2)在(1)的条件下,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc532cfe64300cb3da9e04a307c957a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
您最近一年使用:0次
2024-04-23更新
|
463次组卷
|
2卷引用:河南省开封市2024届高三第三次质量检测数学试题
解题方法
2 . 已知圆心为C的圆经过
,
两点,且圆心C在直线
上.
(1)求圆C的标准方程;
(2)求与直线AB平行且与圆C相切的直线的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92c918b7042bed26495b497cf74ffa59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fb6fd712d967a36c027693a54f91470.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/473ed55b98860ae6c0fbf3663f6b9fa8.png)
(1)求圆C的标准方程;
(2)求与直线AB平行且与圆C相切的直线的方程.
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3 . 已知圆
,若直线
与圆C相交于两个不同的点A,B,则
的最小值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/662ce0ef96a6ef35141235f9291bd775.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1d0fda55edcdec1b0efb850256b8e97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
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解题方法
4 . 已知直线l的方向向量为
,且经过点
,则下列点中在直线l上的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5265d99095b635f62c7915298ec0e963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa482d7bcaa385bfc3548b42a4bfb60.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
5 . 已知圆
,直线
,
是直线
上的动点,过点
作圆
的切线
,切点为
,则切线长
取最小值时,下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0887c01e30bed3f4d782b38bfd789dda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa0667ad7e7060032787706750f409e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ce5dcaffd91bc44cda4a2e44000ae73.png)
A.![]() | B.![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
2023-12-13更新
|
1061次组卷
|
7卷引用:河南省开封市2024届高三第一次模拟考试数学试卷
河南省开封市2024届高三第一次模拟考试数学试卷(已下线)模块三 专题1 小题入门夯实练(4) 期末终极研习室(高二人教A版)(已下线)模块一 专题2 《解析几何》单元检测篇 B提升卷(已下线)模块三 专题2 题型突破篇 小题进阶提升练(1)期末终极研习室(2023-2024学年第一学期)高三(已下线)期末精确押题之多选题(40题)-2023-2024学年高二数学上学期《考点·题型·难点》期末高效复习(人教A版2019)(已下线)第04讲:圆与方程(必刷10大考题+11大题型)-2023-2024学年高二数学上学期《考点·题型·难点》期末高效复习(人教A版2019)(已下线)专题02 直线和圆的方程(2)
6 . 经过点
作直线l,若直线l与连接
,
两点的线段总有公共点,则直线l的斜率的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6951479694aec937a712901634a5a4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/913f78382630e50543e5f7192cae3ed3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c850811ba59a05e945a665196539a048.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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7 . 已知圆
,O是坐标原点,P是圆C上任意一点,若定点A满足
,则
面积的最大值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be670de7ece62f8c3a7286d45fd3f057.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/297af2859ce6975fe9cbff4158300d2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/532d9de08698f61d7c010805c61a4ec5.png)
A.3 | B.9 | C.![]() | D.![]() |
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8 . 已知圆
,若过点
的直线
与圆
相交于
,
两个不同点,则
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/662ce0ef96a6ef35141235f9291bd775.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/3f4dfec890cdfdda355e19463f3be813.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
9 . 已知正方形ABCD的中心为点
,点A在第三象限,AB边所在直线的方程是
.
(1)求AD边所在直线的方程;
(2)求对角线AC所在直线的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44b91b701265d40aab43a28294f93d06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65ccbfa4df4190907430bf37828edf34.png)
(1)求AD边所在直线的方程;
(2)求对角线AC所在直线的方程.
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10 . 已知圆
,直线
.
(1)求圆
关于直线
对称的圆的标准方程;
(2)
是直线
上的动点,过
点作圆
的切线
,切点为
,求切线长
最短时切线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4da87c834af5c1287120382922abf82b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa0667ad7e7060032787706750f409e.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d063ec7f9dbeba72fabf4437f9400e07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
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