名校
1 . 已知抛物线
的焦点为
,点
满足
.
(1)求抛物线的方程;
(2)过点
的直线
交抛物线于
两点,当
时,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f1dea1f7263410b73afff425b19155d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1584d07b1e2ddc64349f0f5940f3a3e.png)
(1)求抛物线的方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2a5e336b6bcba6354fd366c892dd06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b550cc056798d895791754db00635a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2018-02-08更新
|
1417次组卷
|
6卷引用:【全国百强校】黑龙江省牡丹江市第一高级中学2017-2018学年高二下学期期中考试数学(文)试题
名校
2 . 已知椭圆C:
上的点到左焦点的最短距离为
,长轴长为
.
(1)求椭圆
的标准方程;
(2)过椭圆
的右焦点作斜率存在且不等于零的直线与椭圆
相交于
两点,问:在
轴上是否存在定点
,使得
为定值?若存在,试求出点
的坐标和定值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f0e2297e289632ffc211bd20e2e772e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e420d889001a6374c80ed50a1406b135.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6bfd94f6f2f41148d785f6b8a0181d.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f015ed8e497b4394053ddd19683a98f.png)
(2)过椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f015ed8e497b4394053ddd19683a98f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f015ed8e497b4394053ddd19683a98f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ecdae00f4e7c0a32253054cba55d626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed9af8c3fbdb748fd11e2423de063616.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d6828cd2fa20297a05f1cd6dfe25fc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c59076e80b15755ef630fd5f40d1f7.png)
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2018-01-28更新
|
501次组卷
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4卷引用:黑龙江省大庆实验中学2017-2018学年高二上学期期中考试数学(文)试题
名校
3 . 若过抛物线
焦点的直线与抛物线交于
两点(不重合),则
(
为坐标原点)的值是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e48f28aeccf369df5980ac787e9e313f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/658aa70a197c830aa765f2f7ea4c86c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
A.![]() | B.![]() | C.3 | D.![]() |
您最近一年使用:0次
2018-01-27更新
|
811次组卷
|
8卷引用:河北省廊坊市第八高级中学2018届高三模拟试题理科数学试题
名校
解题方法
4 . 已知椭圆
短轴的两个顶点与右焦点
的连线构成等边三角形,过点
且垂直于
轴的直线被椭圆
截得的线段长为1.
(1)求椭圆
的方程;
(2)如图,过点
的直线
交椭圆
于
两点,再过点A作斜率为
的直线交椭圆
于点
,问直线
与直线
的交点是否为定点?若是,求出这个定点;若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74f3c409c807d57ec86a191d236ed343.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)如图,过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5516da98949f4528c7399e4274c34482.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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3389f53711264b0acba3ba6019f8b908.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
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2018-01-26更新
|
275次组卷
|
2卷引用:重庆市巴蜀中学2018届高三上学期第五次月考数学(理)试题
名校
5 . 已知点
在抛物线
上,
点到抛物线
的焦点
的距离为2,直线
与抛物线交于
两点.
(1)求抛物线
的方程;
(2)若以
为直径的圆与
轴相切,求该圆的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7fa90519b0a5835e0bcb6145e275652.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a879a561e14df760e8ad4f515978688.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25d9e95179355496c844491e954ce1dd.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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8de91fd141b91579d57f4f5cdec6848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f118a0d806d56b9a0b70dca96196d0ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ae1567d8f98fabc1a3948f8602cc5e7.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
名校
6 . 已知点
在抛物线
上,抛物线的焦点
满足
+
+
=
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e1968aa8738bf0d8dbfe566b38dc1e8.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35644a7d25d0410409238f52c8818083.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42102c1c07562853219ca5918803a27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da5ad298c94c514a297f8d626cb241b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04b0c76ffa779238a7d6aa7d2969b3e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac962f3e4bf0a5feb67955f717b7fa2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d56ef5608e4f3386740a31e52bc55cb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e1968aa8738bf0d8dbfe566b38dc1e8.png)
您最近一年使用:0次
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7 .
是抛物线
的焦点,以
为端点的射线与抛物线相交于
,与抛物线的准线相交于
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f146c37e9dbdc1354409c395a2dda5c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b072ff6d1b83232bebd7d4709ffba4ef.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/3d5a9d0bc988229388ff1066ad14b006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f146c37e9dbdc1354409c395a2dda5c4.png)
A.![]() | B.![]() | C.![]() | D.1 |
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8 . 已知椭圆与抛物线y2=
x有一个相同的焦点,且该椭圆的离心率为
.
(1)求椭圆的标准方程;
(2)过点P(0,1)的直线与该椭圆交于A,B两点,O为坐标原点,若
,求△AOB的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e2031d209711b058f3d278ede3c1d33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
(1)求椭圆的标准方程;
(2)过点P(0,1)的直线与该椭圆交于A,B两点,O为坐标原点,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaaae3849438b0301945eceb235bab3f.png)
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2018-01-24更新
|
2023次组卷
|
8卷引用:2018届高三数学文科二轮复习:专题检测(十五) 圆锥曲线的方程与性质
2018届高三数学文科二轮复习:专题检测(十五) 圆锥曲线的方程与性质人教A版高中数学 高三二轮(文)专题14 椭圆双曲线、抛物线 测试广东省惠州市2019-2020学年高二上学期期末数学试题山西省大同市2019-2020学年高二下学期5月线上摸底数学(理)试题人教A版(2019) 选择性必修第一册 过关斩将 第三章 圆锥曲线的方程 专题强化练9 直线与圆锥曲线的位置关系(已下线)专题9.10 单元检测-2021年高考数学(理)一轮复习讲练测黑龙江省海林市朝鲜族中学2023-2024学年高二上学期第二次月考数学试题(已下线)专题09 圆锥曲线的方程-直线与圆锥曲线的位置关系-2021-2022学年高二数学同步练习和分类专题教案(人教A版2019选择性必修第一册)
名校
9 . 已知椭圆方程为
,它的一个顶点为
,离心率
.
(1)求椭圆的方程;
(2)设直线
与椭圆交于
,
两点,坐标原点
到直线
的距离为
,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b25e326fdf9e5456f48e8a99a069f379.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/234e7679481ec0d01c915b7fbb71891d.png)
(1)求椭圆的方程;
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76c2bb7be2e9410a16502268fd4c67be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c14c6709d2a04863cacdee618b20613e.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/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd2981bf2261343f905ec1b5355a3c4.png)
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2018-01-24更新
|
1037次组卷
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3卷引用:黑龙江省佳木斯市第一中学2017-2018学年高二上学期期末考试数学(文)试题
名校
10 . 已知过抛物线
的焦点,斜率为
的直线交抛物线于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac62b1ade07205ae2693ec1ab135def.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
两点.
(1)求线段的长度;
(2) 为坐标原点,
为抛物线上一点,若
,求
的值.
您最近一年使用:0次