11-12高二上·河北唐山·期中
名校
1 . 已知
为椭圆
的左右焦点,点
为其上一点,且有
.
(1)求椭圆
的标准方程;
(2)过
的直线
与椭圆
交于
两点,求
的面积
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/138e16888eea5a939814a6da8e9622ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f595683f69d5d6b5ca76408b0ff6ff17.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.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/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
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2019-05-17更新
|
499次组卷
|
3卷引用:2011-2012学年河北省唐山市海港高级中学高二第一学期期中考试文科数学试卷
(已下线)2011-2012学年河北省唐山市海港高级中学高二第一学期期中考试文科数学试卷【全国百强校】江西省上饶市玉山县第一中学2018-2019高二下学期期中考试数学(理)试题福建省长汀县第一中学2022届高三上学期第三次月考数学试题
名校
解题方法
2 . 已知椭圆
经过点
,一个焦点
的坐标为
.
(1)求椭圆
的方程;
(2)设直线
与椭圆
交于
两点,
为坐标原点,求
·
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b238a267d3cbd7a70c160efe341caab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a812a9b58ccba331cfd21d244329af01.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acd55f837e9c4e6bba1163ef13edd09b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/911c0a2ab5e2e85f1ad267f41cb96b9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/794efd8cf0cc386faa170d01f357b1c5.png)
您最近一年使用:0次
2017-07-10更新
|
553次组卷
|
7卷引用:河北省唐山市第一中学2020-2021学年高二下学期期中数学试题
名校
3 . 求适合下列条件的椭圆的标准方程.
(1)长轴在
轴上,长轴的长等于12,离心率等于
;
(2)长轴长是短轴长的2倍,且椭圆过点
.
(1)长轴在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
(2)长轴长是短轴长的2倍,且椭圆过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8a75aaf2b96de353cd12cc51f69e480.png)
您最近一年使用:0次
2016-12-04更新
|
309次组卷
|
3卷引用:2016-2017学年河北武邑中学高二9月月考数学(文)试卷1
解题方法
4 . 已知椭圆
的中心在坐标原点
,焦点在坐标轴上,且经过
两点.
(1)求椭圆
的方程;
(2)若平行于
的直线
交椭圆
于两个不同点
,直线
与
的斜率分别为
,试问:
是否为定值?若是,求出此定值;若不是,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59024804b7b0870d4b04016c802b833d.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)若平行于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.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/f7d8139573942f3c374ec3406494a9a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66a5b7813e902306477f91f9f4084cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5c62f22d7afc5627fcb86599faa8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d15e151727047fd1dbee7962add13f94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b69e3f7ddd51215d00661c09cd900d60.png)
您最近一年使用:0次
5 . 已知椭圆
上一点M的纵坐标为2.
(1)求M的横坐标;
(2)求过点M且与
共焦点的椭圆方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66ae68807a1faa5752f55ce5bd643f83.png)
(1)求M的横坐标;
(2)求过点M且与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81bdc07367292653484aa6e5a121b757.png)
您最近一年使用:0次
2016-12-03更新
|
685次组卷
|
3卷引用:2015-2016学年河北邯郸曲周县一中高二上学期第二次月考理科数学卷
9-10高二下·河南郑州·期末
解题方法
6 . 设
分别为椭圆
的左、右两个焦点.
(1)若椭圆
上的点
到
两点的距离之和等于4,求椭圆
的方程和焦点坐标;
(2)设点P是(1)中所得椭圆上的动点,
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
(1)若椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/315a24a74c99dfa18e6d8b1b5220724b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设点P是(1)中所得椭圆上的动点,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49f274a6fb62ddc16a07565d54006985.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d44e8bc37ed03f44470762748a8f942a.png)
您最近一年使用:0次
2016-12-03更新
|
578次组卷
|
5卷引用:2015-2016学年河北省望都中学高二10月月考文科数学试卷
2015-2016学年河北省望都中学高二10月月考文科数学试卷(已下线)郑州智林学校09-10学年高二下学期期末考试数学试卷(理科)(已下线)2011-2012年福建省福州市八中高二上学期期末考试理科数学2014-2015学年甘肃省兰州一中高二上学期期末考试数学试卷2016-2017学年山东桓台二中高二9月月考数学试卷
2012·河北·一模
解题方法
7 . 已知方向向量为
的直线l过椭圆
的焦点以及点
,直线l与椭圆C交于 A 、B两点,且A、B两点与另一焦点围成的三角形周长为
.
(1)求椭圆C的方程.
(2)过左焦点
且不与x轴垂直的直线m交椭圆于M、N两点,
(O坐标原点),求直线m的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c6e29f20f663e2b227557e22546dd98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b25c39d90e723c654b028d4286d05d73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ee05b3210c8964deef8ff771173d288.png)
(1)求椭圆C的方程.
(2)过左焦点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a4f325af38df329028f8791eb13e386.png)
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11-12高二下·河北衡水·阶段练习
8 . 已知抛物线
的焦点
以及椭圆
的上、下焦点及左、右顶点均在圆
上.
(1)求抛物线
和椭圆
的标准方程;
(2)过点
的直线交抛物线
于
、
两不同点,交
轴于点
,已知
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c518a09919976d184de6ee1c5dec4b48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83de9a16fe69aa19744801693652be7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/560adea7b0d4fbe4131fc41f3fcbd871.png)
(1)求抛物线
![](https://img.xkw.com/dksih/QBM/2015/6/19/1572135933853696/1572135940071424/STEM/93f38efbc14041c2be89dc0577ab8df8.png)
![](https://img.xkw.com/dksih/QBM/2015/6/19/1572135933853696/1572135940071424/STEM/e966c9fed75c4e6181a62c4a5cc261d9.png)
(2)过点
![](https://img.xkw.com/dksih/QBM/2015/6/19/1572135933853696/1572135940071424/STEM/769ad5ed395a48ca932943309bed59dc.png)
![](https://img.xkw.com/dksih/QBM/2015/6/19/1572135933853696/1572135940071424/STEM/93f38efbc14041c2be89dc0577ab8df8.png)
![](https://img.xkw.com/dksih/QBM/2015/6/19/1572135933853696/1572135940071424/STEM/acf674bda8a3497bb8c2cf93bd59f47e.png)
![](https://img.xkw.com/dksih/QBM/2015/6/19/1572135933853696/1572135940071424/STEM/55bd1e65687c4ff9b4d387dbcdebfdec.png)
![](https://img.xkw.com/dksih/QBM/2015/6/19/1572135933853696/1572135940071424/STEM/3491c81e10734d34b9b8c3e86933f59b.png)
![](https://img.xkw.com/dksih/QBM/2015/6/19/1572135933853696/1572135940071424/STEM/fd413e6d44a24a3ba27eda3145770c79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8887db8acd21bcb971ccf7f56ef1935f.png)
您最近一年使用:0次
2012·河北石家庄·一模
解题方法
9 . 已知焦点在
轴上的椭圆C1:
=1经过A(1,0)点,且离心率为
.
(1)求椭圆C1的方程;
(2)过抛物线C2:
(h∈R)上P点的切线与椭圆C1交于两点M、N,记线段MN与PA的中点分别为G、H,当GH与
轴平行时,求h的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2e84aa1cf44d13200c785111c2b410a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
(1)求椭圆C1的方程;
(2)过抛物线C2:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e31401ce101641b9022a4c6a191d88d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
您最近一年使用:0次
11-12高二上·河北衡水·期中
10 . 已知椭圆
的中心是坐标原点,焦点在坐标轴上,且椭圆过点
三点.
(1)求椭圆
的方程;
(2)若点
为椭圆
上不同于
的任意一点,
,求
内切圆的面积的最大值,并指出其内切圆圆心的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6ccf3f985e17b3502022ffd53ea2dc7.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/76c97e750bd0aaa9f48a18a87603a63a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc5334469e92d39043db84d86b792aaa.png)
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