名校
解题方法
1 . 已知点
, 在抛物线
上任取一点
,作
轴,垂足为
,
的最小值为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/885e3f2fb6994977ae6d9d8425613da8.png)
(1)求
;
(2)已知圆
,设
(
且
)为圆
外一点,过点
作圆
的两条切线
和
,
交
于两个不同的点
,
,
交抛物线
于两个不同的点
,
,且
,求点
的轨迹方程,并求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37bbde2076bfa6dd859f7787e155ab8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ab7408ffcefcb8e5e1ad4a9c58f1b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6dbffaf5a3fc708f23bf6e44cbc25a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afb509a172e9821b63370f178d06dc2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/885e3f2fb6994977ae6d9d8425613da8.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
(2)已知圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/948811debe828137d751f874107b6cfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7775aa57ca0e62216f3039ed88dceed0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/379be5b2433ea5a4ff2f32537459948c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efe8dc8e5def7d46b88535453ae1fd96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.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/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d14d14310aaf4630c169e8d7b2a9cf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34494f6910d4e081d89d1136c8cdff4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce425bceb12b035f4ea44ebcd5f4519.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d341082cc54b1cb7a790af9ec4a365d.png)
您最近一年使用:0次
名校
解题方法
2 . 过直线
上一点P作圆
的两条切线PA,PB,若
,则点P的横坐标为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04eed461026f69fe9ab2c5dc12af8ac7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/550d183b05000722c74baf25eb4a6741.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83640592853a53872d7af69c0cffc1bb.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-11-29更新
|
297次组卷
|
2卷引用:重庆市乌江新高考协作体2024届高三上学期高考第一次联合调研抽测数学试题
解题方法
3 . 已知圆
及圆
,若圆
上任意一点
,圆
上均存在一点
使得
,则实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/393a0e30b023f2a20d366eef481b5eea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3defacb8dfc0b52d6502a2190e718ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.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/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa9b342afc579231ab6c02f2dcc3297d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023-04-14更新
|
1845次组卷
|
4卷引用:重庆市2023届高三模拟调研(六)数学试题
4 . 设集合
,
,记
,则点集
所表示的轨迹长度为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/962acd67d67d40b28f899b55ad10fc48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54c277589d6ee3144a8e0732939639a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e77f3b22e1bf538d5ec41c618b2fdf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2018-09-02更新
|
1872次组卷
|
8卷引用:重庆市2018届高三4月调研测试(二诊)数学(文科)试题
重庆市2018届高三4月调研测试(二诊)数学(文科)试题重庆市2018届高三4月调研测试(二诊)数学文试题(已下线)2019年一轮复习讲练测【新课标版理】1.1集合的概念及其基本运算(测)(已下线)2019年高三一轮复习讲练测【新课标版理】1.1集合的概念及其基本运算(练)(已下线)2019年一轮复习讲练测【新课标版文】1.1集合的概念及其基本运算(测)(已下线)2019年一轮复习讲练测【新课标版文】1.1集合的概念及其基本运算(练)(已下线)专题1-1 集合-2022年高考数学毕业班二轮热点题型归纳与变式演练(全国通用)(已下线)专题1-1 集合题型归类-2
名校
5 . 过
轴下方的一动点
作抛物线
的两切线,切点分别为
,若直线
到圆
相切,则点
的轨迹方程为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/531fc91e66179b770d8a89e2e7ac8cda.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/f240cccaf24af8a796abb95cb42be52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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