1 . 已知直线
:
,圆
:
的圆心坐标为
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6fb5f07d7214180cef2d4bc24aa785a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6b304f3854dff97a8bc401500c140b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fad20e2bc6576fc461419f8f138d26e7.png)
A.直线![]() ![]() |
B.![]() ![]() |
C.直线![]() ![]() ![]() |
D.若点![]() ![]() ![]() ![]() |
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2023-12-09更新
|
749次组卷
|
4卷引用:江西省宜春市铜鼓中学2023届高三上学期第三次阶段性测试数学试题
解题方法
2 . 在△ABC中,点
,
,
,则
的面积为______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a26e951d6d2369e8da79a793a93a66a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f3cd3027a533dd07220f161c958602.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff17a82049cfd9eaddea2842a446cc23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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名校
解题方法
3 . 已知圆C:
,直线l:
与圆C交于两点A,B.
(1)若
,求实数m的值;
(2)若点P为直线l所过定点,且
,求直线l的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97ef50f2bd93ab9e761e6cedf6d0d71c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ccf32d6b4dea0906bb097f3083cd8bb.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/923cf9e7ef1f71b786b4e8d11cd7a61f.png)
(2)若点P为直线l所过定点,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a919a8df0842f1702eeda5b3810e3eb4.png)
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名校
解题方法
4 . 已知圆C:
和直线l:
相切.
(1)求圆C半径
;
(2)若动点M在直线
上,过点M引圆C的两条切线MA、MB,切点分别为A、B.
①记四边形MACB的面积为S,求S的最小值;
②证明直线AB恒过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2dceb22241e283787a43ac2b006ee56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2b905d12adb1d83dd79b0b6512a32ab.png)
(1)求圆C半径
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
(2)若动点M在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/446ffa300bde93a7f64368cb43bd3551.png)
①记四边形MACB的面积为S,求S的最小值;
②证明直线AB恒过定点.
您最近一年使用:0次
2024-04-14更新
|
403次组卷
|
3卷引用:云南省昆明市官渡区2022-2023学年高二上学期期中联考数学试卷
解题方法
5 . 已知直线
.
(1)若直线不经过第三象限,求
的取值范围;
(2)若直线
交
轴负半轴于
,交
轴正半轴于
的面积为
(
为坐标原点),求
的最小值和此时直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fa7366031fc1a02570b2e7aa7ca48f4.png)
(1)若直线不经过第三象限,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a15da8f8aa14eb92021a511cbee26060.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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6 . 已知圆及内部一点
,过点
作倾斜角为
的直线,与圆
交于
两点.
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d44c15e23e4d1c752383d1ae5f3189f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)当弦
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
解题方法
7 . 已知命题
:直线
:
过定点
,命题
:
是直线
:
与直线
:
垂直的充要条件,则下列命题为真命题的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14fda2035959f85166752c30ec184874.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb0e705301752424a492f6277ed7774e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c87b351f16728b0023fd63678f8103c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53e70252f221e12202bd968e3071406a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df3ead1028b814eab3f4734760313c19.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-03-10更新
|
182次组卷
|
3卷引用:1号卷·2022年高考最新原创信息试卷(六)文数
8 . 已知是奇函数,当
时,
,则函数
的图象在
处的切线方程为( )
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2024-02-28更新
|
771次组卷
|
3卷引用:1号卷·A10联盟2022届全国高考第一轮总复习试卷数学(文科)试题(六)
1号卷·A10联盟2022届全国高考第一轮总复习试卷数学(文科)试题(六)1号卷·A10联盟2022届全国高考第一轮总复习试卷数学(理科)试题(五)(已下线)广东省佛山市2024届高三教学质量检测(一)数学试题变式题1-6
9 . 已知
的顶点
,
的平分线
所在直线方程为
,
边上的高
所在直线方程为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/26/01d3ca63-252a-4f79-a8fd-0370e859156b.png?resizew=173)
(1)求直线
的解析式;
(2)求顶点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28f2fe415b2f41112c8806750760f739.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c91377dcc82e7bb0e28a0714f08468.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdae78f4d3b8d8213ac3ac9a9567eb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dccc3bd9b101d42b5a6c9a01153a536.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/26/01d3ca63-252a-4f79-a8fd-0370e859156b.png?resizew=173)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)求顶点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
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