2022·全国·模拟预测
名校
1 . 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)
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2022-12-05更新
|
957次组卷
|
5卷引用:2023年普通高等学校招生全国统一考试数学领航卷(六)
名校
2 . 椭圆
:
的左焦点为
,右焦点为
,
在
上,
轴上一点
使
恒成立,则
,
的取值分别是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82e7d9f4f7ace849e09e9adcb786b7f.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/7775aa57ca0e62216f3039ed88dceed0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/261463e6aabb81936deefb833162f97f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e37ad92a1e7dd5888ffb7a96e12f3e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1100379a4385b9ce064847bc21760adc.png)
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名校
3 . 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)
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![](https://img.xkw.com/dksih/QBM/2021/1/27/2645016453513216/2650047674900480/STEM/bef17e98-a4c7-4e6f-8e86-aae7cbd60356.png)
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4 . 已知椭圆
与双曲线
有公共焦点
,点
是两曲线的一个交点,若
,则
的值为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29eb5ce3f09c49dfa489a3b0bd5beafb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f7c8ed045720a04be27757cf59c8ec5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f7e44e4becee7d0e3e0386d33c074d5.png)
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5 . 已知双曲线C:
-
=1(a>0,b>0)与椭圆
+
=1的焦点重合,离心率互为倒数,设F1、F2分别为双曲线C的左、右焦点,P为右支上任意一点,则
的最小值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7355be4fcbc3130a5951364a3be76d6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5268413295580cfda0755ab458b36b64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cfd65b37091a2ed21b8d0fba41c8ea2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff704aac6af294e755688d66ca0efe41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d443bbd3bcac7684670d5822bcff93e.png)
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2020-01-18更新
|
1242次组卷
|
6卷引用:江苏省无锡市2018届高三第一学期期末检测数学试卷
江苏省无锡市2018届高三第一学期期末检测数学试卷(已下线)专题12 圆锥曲线的综合应用-《巅峰冲刺2020年高考之二轮专项提升》(江苏)天津市南开区崇化中学2019-2020学年高二上学期期中数学试题江苏省南通市如皋市第一中学2020-2021学年高二上学期9月调研数学试题辽宁省沈阳市东北育才学校2023届高三高考适应性测试(二)数学试题(已下线)第2章 圆锥曲线 单元综合检测(难点)-2023-2024学年高二数学同步精品课堂(沪教版2020选择性必修第一册)
名校
解题方法
6 . 已知抛物线
的焦点和椭圆
的右焦点重合,直线过抛物线的焦点
与抛物线交于
、
两点和椭圆交于
、
两点,
为抛物线准线上一动点,满足
,
,当
面积最大时,直线
的方程为______ .
![](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/a0ed1ec316bc54c37c4286c208f55667.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/5963abe8f421bd99a2aaa94831a951e9.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/3c58c9f6e10aad5cbe5d3e6c2820489a.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/322b7fc53308233b59dce017d044c3e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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2020-04-16更新
|
1013次组卷
|
5卷引用:2020届全国大联考高三第四次联考数学(理)试题
2020届全国大联考高三第四次联考数学(理)试题河南省新乡市第二中学2019-2020学年高三上学期第四次月考数学(理)试题(已下线)第十一篇基本不等式03—2020年高考数学选填题专项测试(文理通用)(已下线)专题9 综合闯关(提升版)(已下线)专题16 盘点基本不等式五种交汇问题-2
名校
7 . 已知椭圆
的一个焦点恰为抛物线
的焦点
,设抛物线的准线
与
轴的交点为
,过
的直线与抛物线交于
,
两点,若以线段
为直径的圆过点
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bee8e70f1fab639be1636c7bce0477.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c190e8bb81a4d26cf638ed246193cc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c2f156b05838deaae6a35acad242af.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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bee8e70f1fab639be1636c7bce0477.png)
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2016高二·全国·课后作业
8 . 如图,
是椭圆的长轴,点
在椭圆上,且
,若
则椭圆的两个焦点之间的距离为_____ .
![](https://img.xkw.com/dksih/QBM/2016/10/25/1826273179131904/1826273179197440/STEM/97f497a4ab7d44adac79713934ae3ecb.png?resizew=27)
![](https://img.xkw.com/dksih/QBM/2016/10/25/1826273179131904/1826273179197440/STEM/3aea927a908d4c90a2864393a333390e.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2016/10/25/1826273179131904/1826273179197440/STEM/6a67b51d7eeb40cf95460fe8a45b558b.png?resizew=75)
![](https://img.xkw.com/dksih/QBM/2016/10/25/1826273179131904/1826273179197440/STEM/d6af0fa4251549f1ad0f16b0683e87e0.png?resizew=117)
![](https://img.xkw.com/dksih/QBM/2016/10/25/1836136318664704/1826273179197440/STEM/a54351366ec5411b9d75d5b428ec57a1.png?resizew=175)
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