已知点
,
,
,动点M满足
,记动点M的轨迹为曲线C.
(1)求曲线C的方程;
(2)求过点N与曲线C相切的直线方程;
(3)曲线C与圆
相交于E,F两点,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0929421a6188c3122442866b0b85a5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c850811ba59a05e945a665196539a048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbaaf6c0a3530eec683bfbcf09a194e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae0d9116a9c839264169b933aac70d6e.png)
(1)求曲线C的方程;
(2)求过点N与曲线C相切的直线方程;
(3)曲线C与圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/299b9274e61eafb5bb2d07f8d5a70bfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdcf431fad1fd535fc09b3a9895d89d4.png)
22-23高二上·辽宁锦州·期末 查看更多[2]
辽宁省锦州市2022-2023学年高二上学期期末考试数学试题(已下线)高二上学期期末数学模拟试卷(人教A版2019选择性必修第一册+数列)-【题型分类归纳】2023-2024学年高二数学同步讲与练(人教A版2019)
更新时间:2023-03-01 12:48:21
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相似题推荐
解答题-问答题
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适中
(0.65)
【推荐1】已知点
、
,动点
满足
.
(1)求动点
的轨迹
的方程;
(2)已知圆
的圆心为
,且圆
与
轴相切,若圆
与曲线
有公共点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/648de7821becc4f2ebf4d8567528091e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc0d82cb174d173b7e36937c3f99f591.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ac2a398550f16fd07b66173c61452b0.png)
(1)求动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17fa5b9c42e613ebdd0a9d1a2c4d6ea8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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【推荐2】如图,某市在城市东西方向主干道边有两个景点A,B,它们距离城市中心O的距离均为
,C是正北方向主干道边上的一个景点,且距离城市中心O的距离为
,为改善市民出行,准备规划道路建设,规划中的道路
如图所示,道路
段上的任意一点到景点A的距离比到景点B的距离都多
,其中道路起点M到东西方向主干道的距离为
,线路
段上的任意一点到O的距高都相等,以O为原点、线段
所在直线为x轴建立平面直角坐标系
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/10/634d4fc8-88ca-4f83-836a-52627e8c1025.png?resizew=265)
(1)求道路
的曲线方程;
(2)现要在
上建一站点Q,使得Q到景点C的距离最近,问如何设置站点Q的位置(即确定点Q的坐标)?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de0a445ffd6d9085425e040f14d0f73e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9253c06ab2a51ccc54095b1040f3a44a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f447933cb9890b5d070dd292703c7fc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19ca9709995834eb7a656f0f160e55a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61dd5ec32a6cf9185bdafb1806a4e3a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ffc7d1af9053b027cf9e726f5367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/10/634d4fc8-88ca-4f83-836a-52627e8c1025.png?resizew=265)
(1)求道路
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f447933cb9890b5d070dd292703c7fc2.png)
(2)现要在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f447933cb9890b5d070dd292703c7fc2.png)
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解题方法
【推荐1】已知直线
与圆
:
交于
、
两点.
(1)求线段
的垂直平分线的方程;
(2)若
,求过点
的圆
的切线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b979396a703fb14715ba39232f5786a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83b32ab756fedfbcabca65616fb8a211.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/699fc9b7e879af4866aaa07848dfb423.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cfb23a9e07213cb76990dbedfc7feca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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【推荐2】(1)过点
向圆
作切线,求切线的方程;
(2)点
在圆
上,点
在直线
上,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdc8057b074ab72aac23e47bd957c2f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79382ba44ba669b5d43fdd5427adf16c.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab45f15680bb9f1e121f50350a5972c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fa0418fdae5beab7fdc5740369a2c37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f82358b724051b032c7ec734a226ae84.png)
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【推荐1】已知圆O:
,直线
.
(1)若圆O的弦AB恰好被点
平分,求弦AB所在直线的方程;
(2)点Q是直线l上的动点,过Q作圆O的两条切线,切点分别为C,D,求直线CD经过的定点;
(3)过点
作两条相异的直线,分别与圆O相交于E,F两点,当直线ME与直线MF的斜率互为倒数时,求线段EF的中点G的轨迹方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cd89a03660c85fb78bd7fe82ee3068c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c41888144f7eb9ca029d624560530d82.png)
(1)若圆O的弦AB恰好被点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f13bf66fc845b115de4ec45b4be0e23.png)
(2)点Q是直线l上的动点,过Q作圆O的两条切线,切点分别为C,D,求直线CD经过的定点;
(3)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cda12642d59a5817e8990c43de20535.png)
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【推荐2】已知直线
和圆
.
(1)若直线
交圆
于
两点,求
;
(2)求过点
的圆的切线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e925b5e813520f15a53255380a1e4093.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89d24121ae77d85a4260da35740696a.png)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c34517f479fb08f6096d2fb0362f3ad0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaff41080fdea43eea7efedf9ebc1498.png)
(2)求过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2083d9ee4b7f6c07a2a027d85c47ed8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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