2024高三·全国·专题练习
解题方法
1 . 已知抛物线
的焦点和椭圆
的右焦点相同,点
的坐标分别为
是抛物线上的点,设直线
与抛物线的另一交点分别为
.
(1)求抛物线的标准方程;
(2)求证:当点
在抛物线上变动时(只要点
存在,且点
与点
不重合),直线
恒过定点,并求出定点坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae00bdc6f8b564b6b15b32572c848b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c64cae1ba15d5030ef62460bbc708af4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55fb7ec4aa413693f4ecae59fe0e2084.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/666e81326945f168fc30291f1bb2fc10.png)
(1)求抛物线的标准方程;
(2)求证:当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/666e81326945f168fc30291f1bb2fc10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f541f7ae7c39082d202efd28805c54e.png)
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2024-01-30更新
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3卷引用:重庆市部分学校2023-2024学年高二下学期4月阶段检测数学试题
2 . 如图,在平面直角坐标系
中,设点
是椭圆C:
上一点,从原点O向圆
作两条切线,分别与椭圆C交于点
,直线
的斜率分别记为
.
(1)若圆M与x轴相切于椭圆C的右焦点,求圆M的方程;
(2)若
,求证:
;
(3)在(2)的情况下,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3511cdc6a9b56bc1d9415d3d94ef0f67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82e7d9f4f7ace849e09e9adcb786b7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1aa54ba0aa96669daecc73a989564b82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/139c0ae68e597571ba72ef727fa9222c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90963760acac7bfad3ae03088c6c80b0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/13/4fdf9b6d-92b4-49d3-b836-b0d4099c6197.png?resizew=204)
(1)若圆M与x轴相切于椭圆C的右焦点,求圆M的方程;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dd888753c14efc5aa0f00dfdadbabbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eac9ba606fb477550aa62db7bfa0ac4.png)
(3)在(2)的情况下,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bab77b1212086d7b16e288f73a09560.png)
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2023-09-12更新
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6卷引用:山东省枣庄市滕州市第一中学2022-2023学年高二上学期期中数学试题
山东省枣庄市滕州市第一中学2022-2023学年高二上学期期中数学试题(已下线)专题06 椭圆的压轴题(6类题型+过关检测)-【常考压轴题】2023-2024学年高二数学上学期压轴题攻略(人教A版2019选择性必修第一册)2016届江苏省南京市、盐城市高三第一次模拟考试数学试卷(已下线)专题9.8 直线与圆锥曲线位置关系(练)-江苏版《2020年高考一轮复习讲练测》2017届上海市复旦大学附属中学高三毕业考试数学试题云南省曲靖市第一中学2024届高三上学期阶段性检测(四)数学试题
2022·全国·模拟预测
名校
3 . 如图所示,平面直角坐标系
中,四边形
满足
,
,
,若点
,
分别为椭圆
:
(
)的上、下顶点,点
在椭圆
上,点
不在椭圆
上,则椭圆
的焦距为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1134c8e3440abb6cd385af2c169037fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd99a6862833b220a7371852a3570bc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d2f21563f519fc8c47288b2b020e63f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce1132157a33c82610c2d5035493d024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/521d0d12d0e06969e58f56899ea3cd1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/171b08c1122ed5d395dc72e9a8ee1390.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da9dcf6c319174c9ea2b1ceaed1649a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/289d7a880379d6060065c829b45b0ed6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/5/3630d768-f176-4123-8f79-2f6d1f90d5b0.png?resizew=137)
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5卷引用:湖北省武汉市江岸区2022-2023学年高二上学期期末数学试题
22-23高三上·上海浦东新·期中
4 . 已知二次曲线
.
(1)求二次曲线
的焦距和离心率;
(2)若直线
与二次曲线
及圆
都恰好只有一个公共点,求直线
的方程;
(3)任取平面上一点
,证明:
中总有一个椭圆和一条双曲线都通过点
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72302dec2bb90d04a8f5a51d43082306.png)
(1)求二次曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc46e1fa087d602b5d041b99f3410de0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4569ddc5bcf091264c8df01d764fe5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(3)任取平面上一点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d772943ec7caf61d2dad5799765847ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a94555857a26590865f337f8c4a93c37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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名校
解题方法
5 . 如图,已知椭圆
,抛物线
,点
是椭圆
与抛物线
的交点,过点
的直线
交椭圆
于点
,交抛物线
于点
(
,
不同于
).
![](https://img.xkw.com/dksih/QBM/2021/4/19/2703186616483840/2806396343255040/STEM/08170d8a-cc11-4e09-ba30-a7f1e9e2ade4.png?resizew=285)
(1)求椭圆
的焦距;
(2)设抛物线
的焦点为
,
为抛物线上的点,且
、
、
三点共线,若存在不过原点的直线
使
为线段
的中点,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ad5c24ed80bb57cb2ac412b7b0d74b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/398e247f8dcdda0ed9e6b81c99a50425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://img.xkw.com/dksih/QBM/2021/4/19/2703186616483840/2806396343255040/STEM/08170d8a-cc11-4e09-ba30-a7f1e9e2ade4.png?resizew=285)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)设抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81a93ba2ec199e88b41acef626f1485d.png)
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6 . 已知椭圆E:
的左焦点为F,过点P(2,t)作椭圆E的切线PA、PB,切点分别是A、B,则三角形ABF面积最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/271e595c257e4c0ade90a9bbbf0e6b0d.png)
A.![]() | B.1 | C.2 | D.![]() |
您最近一年使用:0次
2021-06-22更新
|
1900次组卷
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8卷引用:四川省雅安中学2020-2021学年高二下学期期中考试数学(理)试题
四川省雅安中学2020-2021学年高二下学期期中考试数学(理)试题(已下线)3.1椭圆(B 能力培优练)-2021-2022学年高二数学同步双培优检测(苏教版2019选择性必修第一册)(已下线)期中重难点突破专题03-【尖子生专用】2021-2022学年高二数学考点培优训练(人教A版2019选择性必修第一册)(已下线)第三章 圆锥曲线与方程单元测试-2021-2022学年高二数学同步精品课堂讲+例+测(苏教版2019选择性必修第一册)(已下线)第01讲 椭圆-【帮课堂】2021-2022学年高二数学同步精品讲义(苏教版2019选择性必修第一册)新疆乌鲁木齐市第八中学2021-2022学年高二上学期第二次月考数学(问卷)试题(已下线)考点40 椭圆-备战2022年高考数学(理)一轮复习考点帮(已下线)专题8-3 圆锥曲线小题综合 (讲+练)-2
名校
解题方法
7 . 已知抛物线
的顶点是椭圆
的中心,焦点与该椭圆的右焦点重合.
(1)求抛物线
的方程;
(2)已知动直线
过点
,交抛物线D于A、B两点,是否存在垂直于
轴的直线
被以
为直径的圆所截得的弦长恒为定值?如果存在,求出
的方程;如果不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae00bdc6f8b564b6b15b32572c848b.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(2)已知动直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af74113f38fffeed8075e57d7f9d2533.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2021-06-03更新
|
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4卷引用:3.3.2 抛物线的简单几何性质-2021-2022学年高二数学同步速效提升练(人教A版2019选择性必修第一册)【学科网名师堂】
(已下线)3.3.2 抛物线的简单几何性质-2021-2022学年高二数学同步速效提升练(人教A版2019选择性必修第一册)【学科网名师堂】江西省宜春市上高二中2022届高三5月第十次月考数学(文)试题四川省自贡市田家炳中学2022-2023学年高二下学期期中数学试题江苏省盐城中学2021届高三下学期仿真模拟数学试题
名校
8 . 如图,在平面直角坐标系
中,椭圆
的左右焦点分别为
,
,椭圆
的弦
与
分别垂直于
轴与
轴,且相交于点
.已知线段
,
,
,
的长分别为2,4,6,12,则
的面积为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7795aec93c2c7ac2fd93e6747ca6516c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9125cf40f225e6ec6342ca327597871.png)
![](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/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
![](https://img.xkw.com/dksih/QBM/2021/1/27/2645016453513216/2650047674900480/STEM/bef17e98-a4c7-4e6f-8e86-aae7cbd60356.png)
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2020高三下·全国·专题练习
名校
解题方法
9 . 已知椭圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
的两个焦点分别是
,
,过
的直线交椭圆于
,
两点,若
且
,则椭圆的离心率为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f82eb4ba631d0f50d848aa6e576b379.png)
![](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/f5076289823db419f94e9c0c8f4aafd9.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/f09a7bdbbdc236a4dc2aea26b90efa65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85617588cc45ec367159e54504e83e6c.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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