1 . 在平面直角坐标系
中,已知点
是
轴与圆
的一个公共点(异于原点),抛物线
的准线为
,
上横坐标为
的点
到
的距离等于
.
(1)求
的方程;
(2)直线
与圆
相切且与
相交于
,
两点,若
的面积为4,求
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/249d0886186d2ac9f58856bff54b8d0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3368e8c005118a2aee7162f25e31da64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/533a7b702ada1dd80123e4041271d521.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/d44e8bc37ed03f44470762748a8f942a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/0b8189f7b0ffe4d20bf0fad43b4ed589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2019-01-20更新
|
380次组卷
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2卷引用:新疆维吾尔自治区和田地区皮山县2023届高三上学期11月期中质量监测数学(理)试题
名校
解题方法
2 . 设点
,动圆
经过点
且和直线
相切.记动圆的圆心
的轨迹为曲线
.
(1)求曲线
的方程;
(2)过点
的直线
与曲线
交于
、
两点,且直线
与
轴交于点
,设
,
,求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092fd1b1d33979818300cd2e3699bff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c6875d552e9fff3c7d655f3a59b166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91edc7e2d4811f5ea6c01284cf00393a.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91edc7e2d4811f5ea6c01284cf00393a.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15ed90ebf0061c8a79beed307fc1719a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91edc7e2d4811f5ea6c01284cf00393a.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdffbf1ac6862b55dd0cb82cf8c659c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e421e12fa0a1c2665188307e0e17cfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8dc4c63a548b91061528aa11058de75.png)
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2020-04-07更新
|
242次组卷
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2卷引用:河南省南阳市第一中学校2021-2022学年高三上学期第二次网上训练数学(文)试题
3 . 一条抛物线的焦点是
,其准线方程是
,求抛物线的顶点坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e1a85a657231ef717809d5a839ad9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18feaed4f3dd7698210ba302c81dca6d.png)
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名校
4 . 已知圆
经过点
且与直线
相切,圆心
的轨迹为曲线
,点
为曲线
上一点.
(1)求
的值及曲线
的方程;
(2)若
为曲线上
异于
的两点,且
.记点
到直线
的距离分别为
求证:
是定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/722130469f5aded0179c8e96fbb27007.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a2d51264ea240fe484b4103adc13d09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a39eece78e31279de7c522934803482.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50e85daaf3da68c34df2e93ac7f01381.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/e2cbfc6fa8e1b3abb22981ea43a5eb01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50e85daaf3da68c34df2e93ac7f01381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15d2b01f86fb5a373af6b089cf3d891b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200c9a714ac9e9a11be6169eec7fc0f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fae811740069bcf50e2927283f1b3c7.png)
您最近一年使用:0次
5 . 已知一条曲线C在y轴右边,C上每一点到点F(1,0)的距离减去它到y轴距离的差都是1
(1)求曲线C的方程.
(2)是否存在正数m,对于过点M(m,0)且与曲线C有两个交点A,B的任一直线,都有
?若存在,求出m的取值范围,若不存在,请说明理由.
(1)求曲线C的方程.
(2)是否存在正数m,对于过点M(m,0)且与曲线C有两个交点A,B的任一直线,都有
![](https://img.xkw.com/dksih/QBM/2012/5/5/1570848909500416/1570848915054592/STEM/34e4db5d982a4c2598055fcee1d77afc.png?resizew=80)
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2016-11-30更新
|
386次组卷
|
14卷引用:黑龙江省绥化市庆安县第一中学2022-2023学年高二上学期期中考试数学试题
黑龙江省绥化市庆安县第一中学2022-2023学年高二上学期期中考试数学试题黑龙江省绥化市庆安县2022-2023学年高二上学期期中数学试题福建省晋江市第一中学2022-2023学年高二上学期期中考试数学试题2010年普通高等学校招生全国统一考试(湖北卷)数学(理科)2010年普通高等学校招生全国统一考试(湖北卷)数学(文科)(已下线)2010年高考试题分项版理科数学之专题八 圆锥曲线(已下线)2010年高考试题分项版文科数学之专题五 平面向量(已下线)2011年新疆乌鲁木齐市第八中学高二上学期期末考试理科数学卷(已下线)2011-2012学年辽宁省庄河六中高二下学期期中考试文科数学试卷湖北省武汉外国语学校2017-2018学年高二上学期期末数学(理)试题高中数学解题兵法 第四十三讲 简化和避免分类讨论的途径高中数学解题兵法 第七十讲 向量法四川省内江市第六中学2021-2022学年高三上学期第一次月考数学(文科)试题四川省成都市成都七中万达学校2020-2021学年高二上学期10月月考理科数学试题
名校
6 . 已知动点
到点
和直线
的距离相等.
(1)求动点
的轨迹方程;
(2)记点
,若
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2f109ad046f362d8686c7ef9810c568.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be92f0e0012a7696c78e3e00513edefd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
(1)求动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)记点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15066261aaefa8e7384aeca62213497b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e67e03bcd014d62bb3f8366b4b0bc0f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abb73d71d7941459e9a56212eca0aff5.png)
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2020-02-01更新
|
194次组卷
|
4卷引用:沪教版(2020) 选修第一册 同步跟踪练习 第2章 2.4(1)抛物线的标准方程
7 . 已知动圆E与圆
外切,并与直线
相切,记动圆圆心E的轨迹为曲线C.
(1)求曲线C的方程;
(2)过点
的直线l交曲线C于A,B两点,若曲线C上存在点P使得
,求直线l的斜率k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a50f9c1d00e05da9c9aa254c41c134bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c98a7f3a8bf384b1dfc1d34aebd46d2.png)
(1)求曲线C的方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23728b4c0467a27d90f71b424f6a946.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f9b9bb0f509e6f3d30858efb217c1f5.png)
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2020-05-06更新
|
182次组卷
|
2卷引用:2023版 湘教版(2019) 选修第一册 过关斩将 第3章 专题强化练11 圆锥曲线中的最值与范围问题的解法
8 . 设过点
与直线
相切的动圆圆心的轨迹为
,不过坐标原点
的直线
与曲线
交于
、
两点,且
.
(1)求曲线
的方程;
(2)求证:直线
过定点;
(3)若
、
两点到
的距离相差为6,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2ba2238d6afe0187534155dd9ac48c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef00713e73b8357cc7900144f5505bc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/3825ccc273ef9a672a606432d165b866.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(3)若
![](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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd82dde0343bdcd7822f076bf5859e39.png)
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2022高三·全国·专题练习
9 .
个抛物线最多分平面为
份,
个最多分
份,求
个抛物线最多分平面为几份?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b06e95b57b7a81cd81d05557a11fa92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e78c013cb4fc61193b651072d5e15de4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
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10 . (1)求与椭圆
有共同焦点且过点
的双曲线的标准方程;
(2)已知抛物线的焦点在
轴上,抛物线上的点
到焦点的距离等于5,求抛物线的标准方程和
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb4717d7fa6d522090c5e949f650bd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/460e1f707e43e4d7a8a2eb6bfaa435e2.png)
(2)已知抛物线的焦点在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f05f370e852b90944c089e060eac665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2016-12-04更新
|
467次组卷
|
5卷引用:广东省惠州市华罗庚中学2022-2023学年高二上学期12月月考数学试题