1 . 抛物线C:
的焦点为F,过x轴上一点(其点在F右侧)的直线l交C于A,B两点,且C在A,B两点处的切线交于点P.
(1)若l:
,
,求C的方程;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
(1)若l:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1584d07b1e2ddc64349f0f5940f3a3e.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2276430a1057ad727c357b7ffca68086.png)
您最近一年使用:0次
2 . 已知抛物线
和右焦点为F的椭圆
.如图,过椭圆
左顶点T的直线交抛物线
于A,B两点,且
.连接AF交
于两点M,N,交
于另一点C,连BC,Q为BC的中点,TQ交AC于D.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/27/3788c2cd-12b4-4ec5-95cf-d97d9a8865ef.png?resizew=189)
(1)证明:点A的横坐标为定值;
(2)记
,
的面积分别为
,
,若
,求抛物线的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d624a18acd4fccfedaf984862adc004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d323869f1ee79f8d629fe70d72c538fb.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/42c4ac9fa073c770c881663275ff3a5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/27/3788c2cd-12b4-4ec5-95cf-d97d9a8865ef.png?resizew=189)
(1)证明:点A的横坐标为定值;
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9c5dac39c868dd75067e6fcd48108e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0023c9e8e0fec24d3aa77d09b2e4e62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/378b2f09e3edc915e3747aad30a983bf.png)
您最近一年使用:0次
2021·全国·模拟预测
名校
解题方法
3 . 已知直线l:
与抛物线C:
交于A、B两点,O为坐标原点,
.
(1)求抛物线C的标准方程;
(2)若过点A的另一条直线l1与抛物线C交于另一点M,与y轴交于点N,且满足|AN|=|AM|,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65920f4695a14c85e7085450aee08b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cf210c8c9e83e70f2d3ede1e18a5f3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3825ccc273ef9a672a606432d165b866.png)
(1)求抛物线C的标准方程;
(2)若过点A的另一条直线l1与抛物线C交于另一点M,与y轴交于点N,且满足|AN|=|AM|,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c2f99ac2b6bc91b983628b68a5cd0d.png)
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2021-06-20更新
|
874次组卷
|
7卷引用:2021年浙江省高考最后一卷数学(第一模拟)
(已下线)2021年浙江省高考最后一卷数学(第一模拟)(已下线)2021年高考最后一卷理科数学(第四模拟)(已下线)2021新高考高考最后一卷数学第四模拟重庆市南开中学2021届高三五模数学试题(已下线)专题02 圆锥曲线弦长问题-【解题思路培养】2022年高考数学一轮复习解答题拿分秘籍(全国通用版)重庆市第十一中学2022届高三上学期10月月考数学试题(已下线)专题21 圆锥曲线综合-备战2022年高考数学(理)母题题源解密(全国乙卷)
2011·浙江绍兴·一模
名校
4 . 抛物线
的焦点坐标是_______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344ccbf79da6ad7e3709d6fa72efb756.png)
您最近一年使用:0次
2021-01-24更新
|
704次组卷
|
13卷引用:2011届浙江省绍兴一中高三下学期回头考试数学文卷
(已下线)2011届浙江省绍兴一中高三下学期回头考试数学文卷2016届江苏省苏州大学高考考前指导卷2数学试卷上海市奉贤区2018届高三下学期调研测试(二模)数学试题(已下线)2012-2013学年陕西省宝鸡中学高二上学期期末考试理科数学试卷黑龙江省伊春市第二中学2018-2019学年高二上学期期末考试数学(理)试题福建省三明市第一中学2020-2021学年高二12月第二次月考数学试题山西省运城市2020-2021学年高二上学期期末数学(文)试题广东省广州市协和中学2020-2021学年高二下学期期中数学试题广东省深圳市深圳中学2022-2023学年高二上学期期末数学试题广东省深圳市五校联考2023-2024学年高二上学期12月段考数学试题广东省新高考2023-2024学年高二上学期数学期末模拟试题上海市松江二中2023-2024学年高二下学期3月月考数学试卷(已下线)专题02 圆锥曲线--高二期末考点大串讲(沪教版2020选修)
名校
解题方法
5 . 已知抛物线C的方程为
,它的焦点F到点M
的距离为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/30/e6c2f279-eb2e-497c-878c-adb640d8a699.jpg?resizew=149)
(1)求抛物线C的方程;
(2)A、B、D是抛物线C上不同三点,且△ABD是以B为直角顶点的等腰直角三角形,求
的最小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3764ba3aa0a241787f4661026bb14053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08fe8550e8fb8710792aead8fa256362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c6c7567972273b4ba733b47bf9d5408.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/30/e6c2f279-eb2e-497c-878c-adb640d8a699.jpg?resizew=149)
(1)求抛物线C的方程;
(2)A、B、D是抛物线C上不同三点,且△ABD是以B为直角顶点的等腰直角三角形,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4673ef63a8d89687b96ee09887ac3daa.png)
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2021-06-08更新
|
837次组卷
|
6卷引用:浙江省金华市2021届高三下学期5月高考仿真模拟数学试题
浙江省金华市2021届高三下学期5月高考仿真模拟数学试题江西省南昌市八一中学2020-2021学年高二下学期期末数学(文)试题(已下线)2.4 抛物线(提高练)-2021-2022学年高二数学同步训练精选新题汇编(人教A版选修2-1)(已下线)考点40 抛物线-备战2022年高考数学(文)一轮复习考点帮(已下线)3.3.1 (分层练)抛物线及其标准方程-2021-2022学年高二数学考点同步解读与训练(人教A版2019选择性必修第一册)(已下线)专题10 圆锥曲线与方程-备战2022年高考数学学霸纠错(全国通用)
6 . 已知
,
是椭圆
的左、右焦点,动点
在椭圆上,且
的最小值和最大值分别为1和3.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/27/773dbed5-1361-4c57-9aad-e52c65037404.png?resizew=202)
(1)求椭圆的标准方程;
(2)动点
在抛物线
上,且在直线
的右侧.过点
作椭圆
的两条切线分别交直线
于
,
两点.当
时,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a200ca2c4af794f4d1c6a5443830b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4ef569668e797b1e94257fd5f4384dd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/27/773dbed5-1361-4c57-9aad-e52c65037404.png?resizew=202)
(1)求椭圆的标准方程;
(2)动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54b53b86bd516400d6fa7dabb3603f31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/853e3c15d116fb61f236ab239c50b114.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/e48867e261c61d24a0a1a4f7ff4627c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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2021-05-28更新
|
817次组卷
|
5卷引用:浙江省丽水、湖州、衢州三地市2021届高三下学期4月教学质量检测数学试题
浙江省丽水、湖州、衢州三地市2021届高三下学期4月教学质量检测数学试题第三章 (综合培优)圆锥曲线的方程 B卷-【双基双测】2021-2022学年高二数学同步单元AB卷(浙江专用)(人教A版2019选择性必修第一册)(已下线)专题11.平面解析几何(解答题)-《2022届复习必备-2021届浙江省高考冲刺数学试卷分项解析》(已下线)专题21 圆锥曲线综合-备战2022年高考数学(理)母题题源解密(全国乙卷)(已下线)第3章 圆锥曲线的方程【单元提升卷】-2022-2023学年高二数学考试满分全攻略(人教A版2019选修第一册)
名校
解题方法
7 . 已知抛物线
的焦点
到其准线的距离为
,过点
的直线交抛物线于
、
两点,直线
、
分别与直线
交于点
、
(
为原点).
![](https://img.xkw.com/dksih/QBM/2021/9/15/2808795102101504/2809434053853184/STEM/529e114d-dc2d-4b3e-b4f4-9597f4c41917.png?resizew=304)
(1)求抛物线
的方程;
(2)已知点
,试问:
的外接圆是否恒经过
轴上的定点
(异于点
)?若是,求出点
的坐标;若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bf92a1ba410263d4f68b7e0432b19aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/cd24f3c4bc9f9a75d4b28630bb630d2b.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/1dde8112e8eb968fd042418dd632759e.png)
![](https://img.xkw.com/dksih/QBM/2021/9/15/2808795102101504/2809434053853184/STEM/529e114d-dc2d-4b3e-b4f4-9597f4c41917.png?resizew=304)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31bdba4cf3079da164d29a0fe709cd8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed283a253b61df01f2a1cdc0cd8003f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
8 . 如图,已知抛物线
:
,点
为抛物线上一点,过点
的圆
与
轴相切于点
,且与抛物线
在点
处有相同切线,
,过点
的直线
交抛物线于点
,
,直线
,
的斜率分别为
,
,满足
.
![](https://img.xkw.com/dksih/QBM/2021/5/17/2723168421412864/2725364056498176/STEM/d46eb90d-0f37-4749-8d7d-3f273d68f5b2.png)
(1)求抛物线
的焦点坐标和准线方程;
(2)求点
到直线
的距离的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e48f28aeccf369df5980ac787e9e313f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff38aed94587a8286eb63644b7a16c91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1461298ca63327d516d6b2ce48f96292.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/a0f0d2e2a4f85a9453da159de902e0ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83d200a411fbc2f50ad72f1fd729a7d7.png)
![](https://img.xkw.com/dksih/QBM/2021/5/17/2723168421412864/2725364056498176/STEM/d46eb90d-0f37-4749-8d7d-3f273d68f5b2.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
解题方法
9 . 已知抛物线
,抛物线
,点P是抛物线
与抛物线
在第一象限的交点.过点P的直线l交抛物线
于点A,交抛物线
于点B(A,B不同于P).
(1)若
,求点P的坐标;
(2)若P是线段的AB中点,直线l与x轴交于点Q,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cca20463f303eb96b9b0a398d523d42f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e393b3e36390b1354950e2cfccc4967.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.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/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7fb64d81d59bb16bb9af4088340490c.png)
(2)若P是线段的AB中点,直线l与x轴交于点Q,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/276850058eca75939960185d7ee9a19f.png)
您最近一年使用:0次
解题方法
10 . 已知曲线
上任意一点到
的距离比到
轴的距离大1,椭圆
的中心在原点,一个焦点与
的焦点重合,长轴长为4.
(1)求曲线
和椭圆
的方程;
(2)椭圆
上是否存在一点
,经过点
作曲线
的两条切线
(
为切点)使得直线
过椭圆的上顶点,若存在,求出切线
的方程,不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2347bec7975dab2b8bce2fd19b1237d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03df57efff473b3cfeb8503796b7d6b6.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/03df57efff473b3cfeb8503796b7d6b6.png)
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