名校
1 . 已知椭圆
的焦距为
,则椭圆
的长轴长为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a171122bf8261a6f7c40b3790fea3d6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b91d650c2fc1a741fabdb333b09aeb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
2021-11-29更新
|
837次组卷
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3卷引用:福建省连城县第一中学2021-2022学年高二上学期期中考试数学试题
解题方法
2 . 以下说法正确的是( )
A.椭圆![]() ![]() |
B.离心率为![]() ![]() |
C.椭圆![]() ![]() |
D.椭圆![]() ![]() |
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3 . 已知焦点在
轴上的椭圆的离心率为
,它的长轴长等于圆
:
的直径,则椭圆的标准方程是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a1b3c344d078f7d09f47aeb0be6b42.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-11-29更新
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2595次组卷
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10卷引用:福建省宁德市2021-2022学年高二上学期期中“同心顺”联合考试数学试题
福建省宁德市2021-2022学年高二上学期期中“同心顺”联合考试数学试题第三章 圆锥曲线的方程单元检测卷(知识达标卷)【一堂好课】2021-2022学年高二数学上学期同步精品课堂(人教A版2019选择性必修第一册)河北省唐县第一中学2021-2022学年高二下学期3月开学考试数学试题黑龙江省哈尔滨师范大学附属中学2021-2022学年高二下学期开学摸底考试数学试题(已下线)2.5.2 椭圆的几何性质(2)河南省周口市郸城县英才中学高中部2022-2023学年高二上学期11月月考数学试题(已下线)专题3.4 圆锥曲线的方程(基础巩固卷)-2022-2023学年高二数学必考点分类集训系列(人教A版2019选择性必修第一册)(已下线)2022年全国高考甲卷数学(文)试题变式题1-4题(已下线)2022年全国高考甲卷数学(文)试题变式题9-12题(已下线)10.3 椭圆(精练)(基础版)-2
解题方法
4 . 设
,
分别是椭圆
:
的左、右焦点,过
的直线
与
相交于
,
两点,且
,
,
成等差数列.
(1)求
;
(2)若直线
的斜率为1,求椭圆
的标准方程.
![](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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94752acb1abb015f22ed6918feeff75f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/121fec86e29434bd4b9afe2656e38a41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaff41080fdea43eea7efedf9ebc1498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c98164772a0644b55518cb985e81a17.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
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5 . 已知
为坐标原点,椭圆
:
的左、右焦点分别为
,
,
,
为椭圆的上顶点,以
为圆心且过
,
的圆与直线
相切.
(1)求椭圆
的方程;
(2)已知直线
与椭圆
交于
,
两点,若
,点
在
上,
.证明:存在点
,使得
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.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/a2644e9f73e5871db934fdafc431d675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/f2d9da11b6082b4bc914e43a277afad3.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/7a049b98bd26f2ace2be1c7211fcf313.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2b33693ae164d2f57bd15664016f8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91edc7e2d4811f5ea6c01284cf00393a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73d1e4eb79798983f31476b7301a1667.png)
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6 . 如图,已知圆
,点
在圆上,点
,
,线段
的垂直平分线与
相交于点
.当点
在圆上运动时,点
的轨迹为曲线
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/7c334c37-f59a-40a5-9d8f-8604282ef2cc.png?resizew=172)
(1)求曲线
的方程;
(2)设直线
与
轴交于点
(点
在点
的左侧),与
交于
,
两点,若
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85e59317d23afa0d7d94a16d2fdbdc3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f55d12701014cf53071093e8739d089b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b392a72e21bb178cd0dd64d681c56a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/7c334c37-f59a-40a5-9d8f-8604282ef2cc.png?resizew=172)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ccc0dfa50c745b5b4e3dc743d9a29d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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解题方法
7 . 已知椭圆
的左顶点为
,右焦点为
,以
为圆心,
为半径的圆与
相交于点
,
,则椭圆
的离心率为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31c71852bd81e4595c152d37d1cf6805.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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8 . 在①过点
;②椭圆长半轴为a,短半轴为b,且
;③长轴长为
这三个条件中任选一个,补充在下面问题中,并解答.已知椭圆的中心在坐标原点O,焦点在x轴上,离心率
,且_______.
(1)求椭圆的方程;
(2)过右焦点F的直线
交椭圆于P,Q两点.当直线
的倾斜角为
时,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe8530b8e246a9a5ec9fe3b9c347d5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23e334f7698dc3ef9251195fb1715272.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/075ba8c6fb5ef7288cd3fed425c8e69e.png)
(1)求椭圆的方程;
(2)过右焦点F的直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fdc02f00cf00a6dfd88b53a90f1f7a4.png)
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3卷引用:福建省福州市八校联考2021-2022学年高二上学期期中考试数学试题
名校
解题方法
9 . 已知椭圆
的左、右焦点分别为
,
,点M是椭圆上一点,点A是线段
上一点,且
,
,则该椭圆的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c47e40beb7ec19bf81acc260a3ee5952.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/643ef7d761de0e794fc39937dc72ac6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9ed02c79fdcb10341e04473a40c0412.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dd6c7db107de512926621dc5568f45d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-11-28更新
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3卷引用:福建省福州市八校联考2021-2022学年高二上学期期中考试数学试题
福建省福州市八校联考2021-2022学年高二上学期期中考试数学试题河北省曲阳县第一高级中学2021-2022学年高二上学期期中数学试题(已下线)专题10.2—圆锥曲线—椭圆2—2022届高三数学一轮复习精讲精练
名校
解题方法
10 . 与椭圆
(
且
)相关的两条直线
称为椭圆C的准线,已知直线l是位于椭圆C右侧的一条准线,椭圆上的点到l的距离的最大值为6,最小值为2.
(1)求椭圆C的标准方程及直线l的方程;
(2)设椭圆C的左右两个顶点分别为
,T为直线l上的动点,且T不在x轴上,
与C的另一个交点为M,
与C的另一个交点为N,F为椭圆C的左焦点,求证:
的周长为8.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d72a07a4e5acfc140a3cea1f26b951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a00f26e45e91c36ef8833cf46d0e3b40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/671241e869118e81afc8cc427d24fe22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9687dfe1247fd7ff48389de273b16038.png)
(1)求椭圆C的标准方程及直线l的方程;
(2)设椭圆C的左右两个顶点分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00442d96d695db2c58bf1fb7165fca94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e463e661d45282d927b7596d5ad3b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3896bb7e10246b3b8c33da4c500762.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecfb02e157819a2bdd0f2790cbc825e9.png)
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