1 . 过点
作抛物线
的两条切线,切点分别为
和
,又直线
经过拋物线
的焦点
,那么
的最小值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/563dbae11400463a6126489549c460f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09fff366172c316a91861139e1079281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0914b68f106a912420705b2f3928ca42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da9dcf6c319174c9ea2b1ceaed1649a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce1132157a33c82610c2d5035493d024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/655b6a742dbacdab5aaa298007663dd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6fd7868cd791cf034f39f46a55828c8.png)
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2022-10-24更新
|
1252次组卷
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6卷引用:重庆市南开中学校2022-2023学年高二上学期11月月考数学试题
2 . 已知点F为抛物线C:
的焦点,点
,若点Р为抛物线C上的动点,当
取得最大值时,点P恰好在以F,
为焦点的椭圆上,则该椭圆的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba00d7ffc72c2fb557febfac39b73f2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdd3764aeac5457766d1c41ef06cfb6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8e55590555905eb4f57889bbd16e39a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-12-05更新
|
1957次组卷
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4卷引用:重庆市杨家坪中学2022届高三上学期12月月考数学试题
名校
3 . 已知抛物线
的焦点为 F,直线
与该抛物线交于A、B 两点,过
的中点Q作y轴的垂线与抛物线交于点P,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/467405b57ddf673891dd4bc7a2b1507a.png)
____________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/223cf57be5499bab6d7bf063f1ef1dbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6735fd8dc76375053e13cba5d8b2a7b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0a0328dde917c3e6d0f1ca9ddb6027b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/467405b57ddf673891dd4bc7a2b1507a.png)
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2023-11-26更新
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2卷引用:重庆市第八中学校2023-2024学年高三上学期高考适应性月考(三)(11月)数学试题
解题方法
4 . 已知直线l与抛物线
交于A,B两点,且线段AB恰好被点
平分.
(1)求直线l的方程;
(2)抛物线上是否存在点C和D,使得C,D关于直线l对称?若存在,求出直线CD的方程;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac62b1ade07205ae2693ec1ab135def.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7bd4e5049fa304e4d352bfe6dee455d.png)
(1)求直线l的方程;
(2)抛物线上是否存在点C和D,使得C,D关于直线l对称?若存在,求出直线CD的方程;若不存在,请说明理由.
您最近一年使用:0次
2023-05-31更新
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640次组卷
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8卷引用:2016-2017学年重庆巴蜀中学高二理上月考一数学试卷
2016-2017学年重庆巴蜀中学高二理上月考一数学试卷第二章圆锥曲线 单元测试题-2021-2022学年高二上学期数学北师大版(2019)选择性必修第一册(已下线)第9课时 课中 直线与抛物线的位置关系(已下线)第08讲 直线与圆锥曲线的位置关系(四大题型6个方向)(讲义)-1(已下线)专题03 圆锥曲线题型全归纳(九大考点)-【寒假自学课】2024年高二数学寒假提升学与练(人教A版2019)(已下线)第3章 圆锥曲线与方程章末题型归纳总结-【帮课堂】2023-2024学年高二数学同步学与练(苏教版2019选择性必修第一册)(已下线)3.3.2 抛物线的几何性质(1)(已下线)专题18 圆锥曲线高频压轴解答题(16大核心考点)(讲义)-2
名校
解题方法
5 . 已知直线
与抛物线
:
交于
,
两点.
是线段
的中点,点
在直线
上,且
垂直于
轴.
(1)求证:
的中点在
上;
(2)设点
在抛物线
:
上,
,
是
的两条切线,
,
是切点.若
,且
位于
轴两侧,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cf8085c9d6fc73d634c7c316a14df78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42102c1c07562853219ca5918803a27.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/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eefa44964db83759aff6fc8dd7ef8f28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b1ec05e3cec27677ded7b4aecaa62d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b1ec05e3cec27677ded7b4aecaa62d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a498dc93f63f98990b8f63990d4fe2e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.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/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e52060a3cb5cde73c28264f4e08a3e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bdc0e53398b36c82db3808c68314621.png)
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名校
6 . 已知抛物线
,过焦点
的直线
与
交于
两点,
与
关于原点对称,直线
和直线
的倾斜角分别是
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc7ad3432ac96b0a38beaa7f2edc3499.png)
![](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/8e3a1467ecf286e3cadaf5aa006606f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55c46b11aa5415df6a2950380a887c8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
7 . 已知点
,
为坐标原点,A,B为曲线C:
上的两点,F为其焦点.下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9deb20b57fe0b94ca8520b55298d6c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/508ea1406db5c05c8616b2fdbe30bc3d.png)
A.点![]() ![]() |
B.![]() ![]() |
C.若P为线段AB的中点,则直线AB的斜率为-2 |
D.若直线AB过点F,且![]() ![]() ![]() ![]() |
您最近一年使用:0次
2022-01-11更新
|
1112次组卷
|
7卷引用:重庆市万州第二高级中学2021-2022学年高二上学期期末(B卷)数学试题
重庆市万州第二高级中学2021-2022学年高二上学期期末(B卷)数学试题(已下线)习题 2-4浙江省宁波市九校联考2022-2023学年高三上学期1月高考适应性考试数学试题(已下线)3.3.2 抛物线的几何性质(重点)-2022-2023学年高二数学《基础·重点·难点 》全面题型高分突破(苏教版2019选择性必修第一册)山东省济南市山东师范大学附属中学2022-2023学年高三下学期3月月考数学试题(已下线)2024年新高考数学全真模拟试卷(新高考卷)(已下线)专题3.3 抛物线(6个考点十大题型)(3)
名校
8 . 已知抛物线
的焦点为
,点
在抛物线
上,且
.
(1)求实数
的值及抛物线
的标准方程;
(2)如图,过点
的直线
交
轴于点
,点
在线段
上,过点
的直线交抛物线
于不同两点
(点
异于点
),直线
分别交抛物线
于不同的两点
.从下面①②③中选取两个作为条件,证明另外一个成立.
①
为
的中点;
②直线
为抛物线
的切线;
③
∥
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f64028c105cb5679d78b9de4e694e47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dda1d7b3982b398ffa32f3dbfdfe787.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17a2ea37d80c92be4bed89985a014e49.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)如图,过点
![](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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec56d586906ebaaa3c32c85a415f4c69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/3/8a87026f-2a6e-4663-93c1-885f310c0f6d.png?resizew=197)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
②直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
您最近一年使用:0次
9 . 已知抛物线
的焦点坐标
,圆
,直线
与C交于A,B两点,与E交于M,N两点(A,M在第一象限),O为坐标原点,则下列说法中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ab7408ffcefcb8e5e1ad4a9c58f1b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092fd1b1d33979818300cd2e3699bff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e984c7a7e8a9ab4bdbee10ee575a505.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1d0aafd52e26c241c46d0206f42f415.png)
A.![]() | B.若![]() ![]() |
C.![]() | D.![]() |
您最近一年使用:0次
10 . 已知点O为坐标原点,直线
与抛物线
相交于A、B两点,焦点为F,则下列选项正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ab466aedd6e176088d8dee7bc3e3aaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc7ad3432ac96b0a38beaa7f2edc3499.png)
A.![]() | B.![]() |
C.![]() | D.线段![]() |
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