1 . 已知椭圆
过点
,
.
(1)求椭圆
的方程;
(2)已知直线
与椭圆
交于
两点.
(i)若
,求线段
的中点坐标;
(ii)当
的面积取到最大值时,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42fa1ff11e22c41a640c656694a49160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4f57afbda4046b9bd6ac52381d924fd.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd40f44c911918ee3638eb1a24bb1bd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
(i)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5095a28bb1b91bf6bed9e2cfbd76bb18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
(ii)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25dd698d57d1cf239eb8752aecaaa4f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2021-11-19更新
|
653次组卷
|
2卷引用:安徽省安庆市怀宁中学2021-2022学年高三上学期模拟测试(一)理科数学试题
解题方法
2 . 已知椭圆
:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
,
,
为椭圆的左右焦点,
为椭圆上一点,且
.
(1)求椭圆的标准方程;
(2)设直线
:
,过点
的直线交椭圆于
,
两点,线段
的垂直平分线分别交直线
、直线
于
、
两点,求
最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/434249d6640b0c1a712d215cf8b83d5c.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/330c3cfd5a1bb13ac54eba64a530e188.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/158b85d73554f5794dd68b17735f1b9e.png)
(1)求椭圆的标准方程;
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.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/6bcb541a2ba65f1f7ce202009103498b.png)
您最近一年使用:0次
2021-11-19更新
|
743次组卷
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5卷引用:山东省2021-2022学年高二11月“山东学情”期中联考数学试题(B)
山东省2021-2022学年高二11月“山东学情”期中联考数学试题(B)山东省2021-2022学年高二11月“山东学情”期中联考数学试题(A)(已下线)第03讲 复习课-圆锥曲线与方程-【寒假自学课】2022年高二数学寒假精品课(苏教版2019选择性必修第二册)(已下线)第05讲 椭圆 (高频考点,精讲)-2(已下线)北京市西城区2022届高三二模数学试题变式题16-21
3 . 设
,
分别为
和椭圆
上的点,则
,
两点间的最大距离是( )
![](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/8973b5dc10a2c0fdf1511dad5d79ce0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81af460f6314806e4cc3f73f3dc18a1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
A.![]() | B.![]() | C.9 | D.![]() |
您最近一年使用:0次
2021-11-16更新
|
389次组卷
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2卷引用:安徽省六安市第一中学2021-2022学年高二上学期期中数学试题
4 . 若x,y满足方程
,则
的最大值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82e7d9f4f7ace849e09e9adcb786b7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3677f2a2a1b4aef3a370a03db832366.png)
您最近一年使用:0次
名校
解题方法
5 . 1.在平面直角坐标系
中,椭圆
:
的离心率为
,焦距为2.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/be9ccdf9-1a3e-48be-98d0-c5da85f95fd8.png?resizew=221)
(1)求椭圆
的方程;
(2)如图,动直线
:
交椭圆
于A,
两点,
是椭圆
上一点,直线
的斜率为
,且
,
是线段
延长线上一点,且
,
的半径为
,
,
是
的两条切线,切点分别为S,
.求
的最小值及
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/be9ccdf9-1a3e-48be-98d0-c5da85f95fd8.png?resizew=221)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)如图,动直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394d3d55b68bd014b2a743da6bc0bbd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46b728c0e69820cdcd839e67ffdb1014.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f77c7fcf5a32774e6e0c46bb6e3618a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fef27cb7cb1b666c1734c65a7aa9aa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc28b3e3b151b74ace297c6af574cac5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d66b83d9dbcb45e1c241d18a3e1843f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be99fa94a1f3e4964fcc13a14fab9ba5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fef27cb7cb1b666c1734c65a7aa9aa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6542e3902685bc6c6e7338eeff7db0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d0a0f726fad67e97d5864dec65cb5c6.png)
您最近一年使用:0次
2021-11-14更新
|
1509次组卷
|
5卷引用:安徽省六安市第一中学2021-2022学年高二上学期期中数学试题
名校
解题方法
6 . 已知椭圆
离心率为
,且其上一点到右焦点
距离的最大值为4
(1)求椭圆的标准方程
(2)设
为椭圆的左焦点,P为椭圆C上的任意一点,求
的取值范围.
(3)设A为椭圆的右顶点,
为椭圆的一条不经过A的弦,以
为直径的圆B经过A点,求
斜率的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
(1)求椭圆的标准方程
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/258125308715a2f214ec9e597b6ae2f3.png)
(3)设A为椭圆的右顶点,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
2021-11-13更新
|
860次组卷
|
2卷引用:天津市新华中学2021-2022学年高二上学期期中数学试题
7 . 在平面直角坐标系中,
,
,
,点A的轨迹图形设为E.
(1)求E的标准方程;
(2)点P为E上一动点,点O为坐标原点,曲线E的右焦点为F,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d42f05b013e4b7166cbc87c5a83d6a85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca0b4afd16b79370532de44989d6c43d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a94a70686cb9c91ec9705bed47dc663.png)
(1)求E的标准方程;
(2)点P为E上一动点,点O为坐标原点,曲线E的右焦点为F,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d41f35b51dee2fdc4b3eedaa4c2f845.png)
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名校
解题方法
8 . 已知椭圆
的焦距为
,离心率为
.
(1)求椭圆C的标准方程;
(2)若点
,点B在椭圆C上,求线段
长度的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6b0dadb875cccce870b69409a476606.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
(1)求椭圆C的标准方程;
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383f12cb70ca55eba4ff012771dbfa9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
名校
解题方法
9 . 已知椭圆
:
的左、右焦点分别为
、
,上顶点为A,
,长轴的长为4.过右焦点
的直线l与椭圆交于M、N两点(非长轴端点).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/417344af-b489-45bc-a1ef-09a7e7cdabf4.png?resizew=210)
(1)求椭圆的方程;
(2)若直线l过椭圆的上顶点A,求
的面积;
(3)延长MO(O为坐标原点)交椭圆C于P点,求
面积的最大值,并求此时直线l的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.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/9092a8273b552fe175b28fbed6953837.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/417344af-b489-45bc-a1ef-09a7e7cdabf4.png?resizew=210)
(1)求椭圆的方程;
(2)若直线l过椭圆的上顶点A,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/656690e5d6fe1b44a4983086229f34ae.png)
(3)延长MO(O为坐标原点)交椭圆C于P点,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ed4c4e8edbd179f3fc38a6653f18c1.png)
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10 . 已知椭圆
上有一动点M(异于顶点),点P,Q分别在x,y轴上,使得M为PQ的中点.若x轴上一点R满足
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae00bdc6f8b564b6b15b32572c848b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ddc9b0f89a8295181e8e7d749f3c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8f9d08fccf0da8983522d37c2caa03e.png)
A.无最小值,无最大值 | B.有最小值,有最大值 |
C.无最小值,有最大值 | D.有最小值,无最大值 |
您最近一年使用:0次
2021-11-10更新
|
1494次组卷
|
4卷引用:浙江省金华市第一中学2022届高三上学期第一次模拟考试数学试题
浙江省金华市第一中学2022届高三上学期第一次模拟考试数学试题浙江省2022届普通高等学校招生集英苑线上模拟考试(国庆联考)数学试题(已下线)考点42 圆锥曲线中的范围与最值问题-备战2022年高考数学典型试题解读与变式(已下线)专题23 圆锥曲线中的最值、范围问题 微点3 圆锥曲线中的最值、范围问题综合训练