解题方法
1 . 已知椭圆C:
的左、右焦点分别为
,
,P是C上任意一点(异于左右顶点),O为坐标原点,M,N分别为线段
,
的中点,若四边形PMON的周长为6,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36f54caf7dd87fbb2866908f6baaf88a.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/9ac86e1c253297a377e14fb9a1689be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0739793f234f8e86adc6177801ae7295.png)
A.C的长轴长为3 | B.C的离心率为![]() |
C.![]() | D.![]() |
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2 . 已知直线
与椭圆
交于
,
两点,若
是直线
上一点,
为坐标原点,则下列结论正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ab466aedd6e176088d8dee7bc3e3aaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2242ca20bd7ab3d41b128e10a4071521.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
A.椭圆![]() ![]() |
B.![]() |
C.![]() |
D.若![]() ![]() ![]() |
您最近一年使用:0次
2023-02-17更新
|
737次组卷
|
4卷引用:河北省石家庄市正中实验中学2022-2023学年高二下学期4月月考数学试题
解题方法
3 . 已知椭圆
的右焦点为F,过F作x轴的垂线交椭圆C于点P(P在第一象限),直线OP(O是坐标原点)与椭圆C另交于点A,直线AF与椭圆C另交于点B,若
,直线PA,PB,AB的斜率分别记为
,
,
,椭圆C的离心率为e,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83640592853a53872d7af69c0cffc1bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9626bd07f966ea26a51dcd8ceba04ff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edf32f4d595c02a8c0f7cc5f8fd0c931.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c1dc007e36c78ab98df4cd2383b4c5d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
4 . 已知直线
与椭圆C
)交于A,B两点,线段AB的中点为
,则C的离心率可能是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83ecaa6e78c479fb4d1a37db525774cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b68bed5f53ce98a19785d81b7ca2336.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55cda8ce6406ef528530ff5278f4d22b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-02-10更新
|
552次组卷
|
5卷引用:河北省邢台市2023届高三上学期期末数学试题
河北省邢台市2023届高三上学期期末数学试题湖南省娄底市涟源市第二中学2022-2023学年高二上学期期末数学试题(已下线)第五节 椭圆 第二课时 直线与椭圆的位置关系 B素养提升卷湖南省邵阳市新邵县2023-2024学年高二上学期期末数学试题(已下线)专题3.1 椭圆(5个考点十四大题型)(4)
名校
解题方法
5 . 如图,
,
是双曲线
:
与椭圆
的公共焦点,点
是
,
在第一象限内的公共点,设
方程为
,则下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/16/b82d5169-c2a3-4a4e-b3f8-8b40c73be131.png?resizew=203)
![](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/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c477e5ade921ffa8377c4719319380ff.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/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de280ccf8124b26fbbac81ea62646e35.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/16/b82d5169-c2a3-4a4e-b3f8-8b40c73be131.png?resizew=203)
A.![]() |
B.![]() ![]() ![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() ![]() |
您最近一年使用:0次
2023-01-14更新
|
582次组卷
|
5卷引用:河北省唐山市滦南县第二高级中学2023届高三上学期期末数学试题
名校
6 . 已知椭圆
的离心率为
,
是椭圆
的两个焦点,
为椭圆
上的动点,
的周长为
,则下列选项正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2a698891d42c70b597f0da4f215f09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/002ed1ebb2cb936e10ab478789f91c7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/180ea775f2af05650404d764384e7faa.png)
A.椭圆![]() ![]() |
B.![]() |
C.![]() ![]() ![]() |
D.![]() |
您最近一年使用:0次
2023-01-05更新
|
456次组卷
|
4卷引用:河北省张家口市2022-2023学年高二上学期期末数学试题
解题方法
7 . 若椭圆
的离心率为
,则实数
的取值可能是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e61eefbeabdbbed1ffb3e57c3dd8605.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827ccf0c04aa941ba20d5f4c6068b46b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.10 | B.8 | C.5 | D.4 |
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2022-12-18更新
|
531次组卷
|
4卷引用:河北省衡水市第十三中学2022-2023学年高二上学期质检(三)数学试题
解题方法
8 . 如图,椭圆
与椭圆
有公共的左顶点和左焦点,且椭圆
的右顶点为椭圆
的中心,设椭圆
与椭圆
的长半轴长分别为
和
,半焦距分别为
和
,离心率分别为
和
,则以下结论中正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/6da9ad3a-ed7d-43d7-8381-9e39112d9000.png?resizew=182)
![](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/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.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/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7936359df4c926b72b48c6fdae55f12d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b76f79be89b8c6227b68eded6b675546.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d33558881906c228c262ff8024dcfc4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a33a99190a8fd29c36d5a002e3197cc5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/6da9ad3a-ed7d-43d7-8381-9e39112d9000.png?resizew=182)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2022-12-12更新
|
467次组卷
|
3卷引用:河北省高碑店市崇德实验中学2022-2023学年高二上学期期末数学试题
名校
解题方法
9 . 已知
的左,右焦点分别为
,
,长轴长为4,点
在椭圆C外,点Q在椭圆C上,则下列说法中正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e79d247aef0e583d625d00a6e72db87a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e82fe25db889399bb3ca4ffd5dd5db84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a61d572ecf27dc02fcbd588f24647b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23b2072de3e24c70c241d020a591378e.png)
A.椭圆C的离心率的取值范围是![]() |
B.已知![]() ![]() ![]() |
C.存在点Q使得![]() |
D.![]() |
您最近一年使用:0次
2022-10-17更新
|
1032次组卷
|
6卷引用:河北省保定市唐县第一中学2022-2023学年高二上学期期中考试数学试题
名校
解题方法
10 . 若曲线C的方程为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5acac368ad0146f49712e2c9aa7fdd1.png)
A.当![]() ![]() |
B.当![]() ![]() |
C.当![]() |
D.当曲线C表示椭圆时,焦距的最大值为4 |
您最近一年使用:0次
2022-06-13更新
|
1719次组卷
|
6卷引用:河北省保定市唐县第一中学2022-2023学年高二上学期期中考试数学试题