1 . 动圆P过点
,且与直线
相切,设动圆圆心
的轨迹为曲线
.
(1)求曲线
的方程;
(2)过点F的直线交曲线C于A,B两个不同的点,过点A,B分别作曲线C的切线,且二者相交于点M,若直线
的斜率为
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5421a28dc3675ae20190d6090793246e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eefa44964db83759aff6fc8dd7ef8f28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点F的直线交曲线C于A,B两个不同的点,过点A,B分别作曲线C的切线,且二者相交于点M,若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/907d5147cea4c9ce855074864fe54506.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3389f53711264b0acba3ba6019f8b908.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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2 . 设椭圆
,离心率
,短轴
,抛物线顶点在原点,以坐标轴为对称轴,焦点为
,
(1)求椭圆和抛物线的方程;
(2)设坐标原点为
,
为抛物线上第一象限内的点,
为椭圆是一点,且有
,当线段
的中点在
轴上时,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e7114bb12e4b07275fdf982087e6f34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/075ba8c6fb5ef7288cd3fed425c8e69e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1a47502d1477c0c4c0b68190d87bd50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
(1)求椭圆和抛物线的方程;
(2)设坐标原点为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/2018/11/16/2076832283828224/2078231372414976/STEM/f189f6fdf7e04ec38fec70df0836d1e1.png?resizew=7)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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2018-11-08更新
|
918次组卷
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7卷引用:【市级联考】广东省珠海市2019届高三9月摸底考试数学(文)试题
【市级联考】广东省珠海市2019届高三9月摸底考试数学(文)试题【全国百强校】湖南省衡阳市第八中学2019届高三第三次月考数学(文)试题(已下线)2018年11月23日 《每日一题》文数人教版一轮复习-直线与抛物线的位置关系(2) 【市级联考】河南省洛阳市2019年高三数学(文科)模拟考试题(已下线)2019年11月22日《每日一题》一轮复习文数-直线与抛物线的位置关系(2)贵州省凯里市第一中学2019-2020学年高三上学期开学考试数学(理)试题【全国百强校】黑龙江省鹤岗市第一中学2018-2019学年高二上学期期中考试数学(文)试题
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3 . 已知动点
到定点
的距离比
到定直线
的距离小1.
(1)求点
的轨迹
的方程;
(2)过点
任意作互相垂直的两条直线
,分别交曲线
于点
和
.设线段
,
的中点分别为
,求证:直线
恒过一个定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2ba2238d6afe0187534155dd9ac48c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0267a99f342bb7fc23964e75afc0606f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0df80156a3d8e4471f4c0650d7a906e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455d9a05141f0e9afa4fca657d0292aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
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2017-09-22更新
|
2892次组卷
|
11卷引用:广东省珠海一中等六校2018届高三第三次联考数学文试题
广东省珠海一中等六校2018届高三第三次联考数学文试题四川省双流中学2018届高三上学期9月月考数学(理)试题广东省六校(广州二中,深圳实验,珠海一中,中山纪念,东莞中学,惠州一中)2018届高三下学期第三次联考数学(文)试题【全国百强校】山西省运城市康杰中学2018届高考模拟(四)数学(文)试题【全国百强校】山西省运城市康杰中学2018届高考模拟(四)数学(理)试题【全国百强校】广东省广州市仲元中学2018届高三七校联合体考前冲刺交流考试数学(理)试题四川省南充高中2019-2020学年高三上学期第四次月考数学理科试题2020年普通高等学校招生全国统一考试理科数学样卷(九)(已下线)专题12 解析几何中的定值、定点和定线问题 第一篇 热点、难点突破篇(练)-2021年高考数学二轮复习讲练测(浙江专用)四川省南充高中2019-2020学年高三上学期第四次月考数学文科试题江苏省扬州市广陵区扬州中学2019-2020学年高二上学期10月月考数学试题
名校
4 . 抛物线
上一点
到抛物线准线的距离为
,点
关于
轴的对称点为
,
为坐标原点,
的内切圆与
切于点
,点
为内切圆上任意一点,则
的取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8516f71467b419293fa27df70bdaed74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53ef4efbff159924bdb1f06fc2176f94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40e93941f67a248bdbedb285b4e40500.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b8189f7b0ffe4d20bf0fad43b4ed589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7c0840f2c8a920076839b7fac11ffbe.png)
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2017-03-02更新
|
3707次组卷
|
9卷引用:广东省珠海市第一中学2023届高三下学期2月阶段性考试数学试题
广东省珠海市第一中学2023届高三下学期2月阶段性考试数学试题2017届云南省云南师范大学附属中学高三高考适应性月考(五)文数试卷(已下线)专题5.3 解析几何中的范围问题-玩转压轴题,进军满分之2021高考数学选择题填空题黑龙江省齐齐哈尔市部分地区2022-2023学年高三上学期1月期末考试数学试题安徽省安庆市2023届安庆第一中学高考三模数学试题四川省成都市树德中学2017-2018学年高二12月月考数学(理)试题(已下线)黄金30题系列 高二年级数学(文) 小题好拿分【提升版】四川省成都市郫都区2019-2020学年高二上学期期中数学试题江苏省扬州市广陵区扬州中学2019-2020学年高二上学期12月月考数学试题
5 . 已知抛物线
的顶点在原点,
为抛物线的焦点.
(1)求抛物线
的方程;
(2)过点
的直线
与抛物线
交于
两点,与圆
交于
两点,且
位于线段
上,若
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e227e9bafec661905ad1e69a458aac.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/024a5498da5765468a04f56da78e5a94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3a51949f48ee8cf746851ba779b078e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3a51949f48ee8cf746851ba779b078e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/203b7bbfb69305947bfb70bc9c1175e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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6 . 抛物线
的焦点坐标是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/add0263f85dd38063a66fbca42802a14.png)
A.(![]() ![]() | B.(![]() | C.(![]() | D.(![]() |
您最近一年使用:0次
2016-12-04更新
|
688次组卷
|
3卷引用:2017届广东珠海市高三9月摸底考试数学(文)试卷
解题方法
7 . 已知抛物线
的顶点为坐标原点
,焦点
,
(1)求抛物线
的方程;
(2)过点
作直线交抛物线
于
、
两点,若直线
与
分别交直线
于
、
两点,当
时,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5421a28dc3675ae20190d6090793246e.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf1438142deeac876fc7dc50552e552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33400b08941f4f9c0ed12b0e0cdff822.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa63a8151464de99abe6b7a8846bda8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/31/14633107-6b73-441d-ad9b-74566dcbaf93.png?resizew=190)
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8 . 已知抛物线
,圆
.
(1)在抛物线
上取点
,
的圆周上取一点
,求
的最小值;
(2)设![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78663869ff5d83d5804f37a5b8dbc6b8.png)
为抛物线
上的动点,过
作圆
的两条切线,交抛物线
于
、
点,求
中点
的横坐标的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4428756f1088ce78ed97cbcea99775f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b55ecabbaab74f20205e63e5c09a5bc.png)
(1)在抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/631e6a0ed0f1f40e1072ac6a21d05e7a.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78663869ff5d83d5804f37a5b8dbc6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92bdeb3f8546ccca90e8e9787e74c246.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
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10-11高三·广东珠海·阶段练习
9 . 在平面直角坐标系
中,设点
,直线
:
,点
在直线
上移动,
是线段
与
轴的交点,
.
(I)求动点
的轨迹的方程C;
(II)设圆M过A(1,0),且圆心M在曲线C上,TS是圆M在y轴上截得的弦,当M运动时弦长|TS|是否为定值?请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93f721506b2ed96f10266ea18037186f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c98a7f3a8bf384b1dfc1d34aebd46d2.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/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b43bede2df427e908ec8280af9fea683.png)
(I)求动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
(II)设圆M过A(1,0),且圆心M在曲线C上,TS是圆M在y轴上截得的弦,当M运动时弦长|TS|是否为定值?请说明理由.
![](https://img.xkw.com/dksih/QBM/2011/9/10/1570309330575360/1570309336121344/STEM/32fcd49ef32f44e4b9546430d31e66a8.png?resizew=173)
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