真题
1 . 已知
是平面直角坐标系中的点集.设
是
中两点间距离的最大值,
是
表示的图形的面积,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbd4f6afbd0d32ee97a05e34948bb2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
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2024高三·全国·专题练习
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解题方法
2 . 函数
的最大值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8d960b7da01dc04c5329216f6dc22f8.png)
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2024高三·全国·专题练习
3 . 若函数
存在零点,则实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3f316367a6747a1ccf59033d75c1182.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2024高三下·全国·专题练习
解题方法
4 . 已知
,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b15ea861470c12ba7eafd005c4892c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e17f0e8b46abf6e3d0b89a9bf58ec62c.png)
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2024高三·全国·专题练习
5 . 已知双曲线C:
的左、右焦点分别为
,过点
,斜率为k的直线与双曲线的左、右两支分别交于P,Q两点,O是坐标原点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e4bec460674aef133f871989e3a9568.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c477e5ade921ffa8377c4719319380ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/115a0c87ac14dbb770c95d74d6e26073.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e4bec460674aef133f871989e3a9568.png)
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2024高三·全国·专题练习
6 . 已知圆C:
,过直线
上点P引圆C的切线,切点为A,B,则当△ABC的面积最大时,点P的坐标为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9df0d79e42d86b0def4caa10dffa75a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f5212f9b39ca710f0349e1b3652bc6a.png)
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2024高三·全国·专题练习
解题方法
7 . 已知直线
过定点
,
与
轴正半轴、
轴正半轴分别交于
两点,且
.
(1)求直线
的倾斜角
的值;
(2)若以
为圆心的圆与直线
相切,求圆
的半径
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f13bf66fc845b115de4ec45b4be0e23.png)
![](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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/320744c7232b7deb546fadb0948cf61c.png)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(2)若以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/743c08b3555fca31cd299d6d90242fba.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/11bc05f41215f9894e11d1df0465751a.png)
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8 . 已知圆
,圆
的半径为
,过直线
上的动点
作圆
的切线,切线长始终相等,则圆
的标准方程为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70feca8eac775ebee7b6d9760e2be6f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a68c1d20a422a363e356a160f096503c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dcaada7649455fbebcdbdbb9a94e6a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21e9feabc99f62ee569b460e61526e2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
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2024高三·全国·专题练习
9 . 已知直线l的斜率为6,且被两坐标轴所截得的线段长为,则直线l的方程为( )
A.y=6x+![]() | B.y=6x+6 |
C.y=6x±6 | D.y=6x-6 |
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