名校
解题方法
1 . 已知椭圆
的右顶点为
,离心率为
.过点
与x轴不重合的直线l交椭圆E于不同的两点B,C,直线
,
分别交直线
于点M,N.
(1)求椭圆E的方程;
(2)设O为原点.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d295a4cc3a58f9f38ee98337313c81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54695f96e6f365b0cc79b3ceaf5d26cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39cc033406da2cdd342308972c6701f1.png)
(1)求椭圆E的方程;
(2)设O为原点.求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5897b35e64d5c814ac47b917d45e88.png)
您最近一年使用:0次
2022-05-05更新
|
2651次组卷
|
8卷引用:江西省南昌市第十中学2022届高三下学期高考仿真模拟考试(一)数学(文)试题
2 . 已知椭圆
过点
.
(1)求C的标准方程;
(2)若过点
且不与x轴垂直的直线
与C交于
两点,记C的上顶点为D,若
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a4a6c4a511060116fbfc081dbd12e60.png)
(1)求C的标准方程;
(2)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23a9301fc1ac223f9ddee3e918b4d882.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0133b26e390fe11bc46a35e6b523b809.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd28cdb9f395d0506a50286f55f866d1.png)
您最近一年使用:0次
2022-03-15更新
|
225次组卷
|
2卷引用:江西省2022届高三智慧上进大联考一轮复习验收数学(文)试题
名校
解题方法
3 . 已知椭圆
的右焦点为
,左、右顶点分别为
,
,过点
任作一条直线
,与
交于异于
,
的
,
两点.
(1)设直线
,
的斜率分别为
,
,求证:
为定值;
(2)设直线
的斜率为
,是否存在正常数
,使得
?若存在,求出
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/279cefeb5c389a37a71e5fd3925f5954.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/7f9e8449aad35c5d840a3395ea86df6d.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/c5db41a1f31d6baee7c69990811edb9f.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/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(1)设直线
![](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/546a035918f025942ca99b9ffebd8eca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbd6a1d6fab318824426e52464a575e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc73b5d6f6977c62283faacd4875f7d4.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/279563c3c055777ce1aa369a2ef54aed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e18abc8b447e4a6ff19e6bd4a30cb7b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f46f16fa0a130ebdb3cb7b99b96a9e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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2022-01-24更新
|
220次组卷
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3卷引用:九师l联盟(江西省)2022届高三1月质量检测期末数学(文)试题
名校
解题方法
4 . 已知椭圆
(
)的离心率为
,一个焦点为
.
(1)求椭圆
的方程;
(2)设
为原点,直线
(
)与椭圆
交于不同的两点
,且与x轴交于点
,
为线段
的中点,点
关于
轴的对称点为
.证明:
是等腰直角三角形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2293a1d028c9ecd8f26a69543a6ced9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174142f3bba761585b6bc2653009b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fab8a0cc6504aa4c3a38006f5394b4c2.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54479885d4ab2f717d2e97718da04b43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0baedc4d7e690ab3f7d80d30ba0a9efe.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c39217c0983f8edf3ba20b50bd83573.png)
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2022-01-12更新
|
1130次组卷
|
7卷引用:江西省宜春市宜丰县宜丰中学2023-2024学年高二上学期12月月考数学试题
名校
解题方法
5 . 已知圆锥曲线
上的点
的坐标
满足
.
(1)说明
是什么图形,并写出其标准方程;
(2)若斜率为1的直线
与
交于
轴右侧不同的两点
,
,点
为
.
①求直线
在
轴上的截距的取值范围;
②求证:
的平分线总垂直于
轴.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82a79a33a83a7ba57a34b5093d1d1d02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd05490af0096bb615260e752b67cfb6.png)
(1)说明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)若斜率为1的直线
![](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/d053b14c8588eee2acbbe44fc37a6886.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/fad20e2bc6576fc461419f8f138d26e7.png)
①求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
②求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb686e4f5e3938575bc547e849d5513f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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2021-09-30更新
|
1395次组卷
|
3卷引用:江西师范大学附属中学2021-2022学年高二下学期第一次月考数学(理)试题
名校
解题方法
6 . 已知椭圆E:
,P为椭圆E的右顶点,O为坐标原点,过点P的直线l1,l2与椭圆E的另外一个交点分别为A,B,线段PA的中点为M,线段PB的中点为N.
(1)若直线OM的斜率为
,求直线l1的方程;
(2)若OM⊥ON,证明:直线AB过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/def6b1847098dd39d653c77786cb4eba.png)
(1)若直线OM的斜率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f30d314a642667fef559032264647366.png)
(2)若OM⊥ON,证明:直线AB过定点.
您最近一年使用:0次
2021-08-24更新
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579次组卷
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3卷引用:江西省宜春市丰城市第九中学2020-2021学年高二下学期第三次月考数学(理)试题
7 . 已知椭圆
:
的离心率为
,
,
为其左、右顶点,
为椭圆上除
,
外任意一点,若记直线
,
斜率分别为
,
.
(1)求证:
为定值;
(2)若椭圆
的长轴长为4,过点
作两条互相垂直的直线
,
,若
恰好为
与椭圆相交的弦的中点,求
与椭圆相交的弦的中点的横坐标.
![](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/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/800c5e266b4ad8462a46970f0a232d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f46b053f98b1d05a2043e94eeaefea87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4757181824e15e0f21e5bdd55448783.png)
(2)若椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48d25e70d37af93796965efc8d342185.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
您最近一年使用:0次
2018-06-11更新
|
809次组卷
|
3卷引用:江西省都昌县第二中学2023-2024学年高二上学期10月月考数学试题
名校
8 . 椭圆的两个焦点坐标分别为F1(-
,0)和F2(
,0),且椭圆过点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e5b8e9184029c639d4f14a99a4a8ac9.png)
(1)求椭圆方程;
(2)过点
作不与y轴垂直的直线l交该椭圆于M,N两点,A为椭圆的左顶点,证明
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e5b8e9184029c639d4f14a99a4a8ac9.png)
(1)求椭圆方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f3854cd684a1180dd748fcbb32e88a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3342ceb71dc21a5e6150caad2ce0b029.png)
您最近一年使用:0次
2018-11-14更新
|
560次组卷
|
2卷引用:【全国百强校】江西省南昌市第十中学2018-2019学年高二上学期期中考试数学(理)试题
10-11高三上·广东深圳·期中
9 . 已知椭圆的中心在原点,焦点在
轴上,长轴长是短轴长的2倍且经过点
,平行于
的直线
在
轴上的截距为
,
交椭圆于
两个不同点.
(1)求椭圆的标准方程以及
的取值范围;
(2)求证直线
与
轴始终围成一个等腰三角形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85d23fc512ad69a2d5919ce690407704.png)
![](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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87484a879f450ab097f720fb2a0f4a2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(1)求椭圆的标准方程以及
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)求证直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03df57efff473b3cfeb8503796b7d6b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
2017-08-20更新
|
577次组卷
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7卷引用:2010-2011年江西省鄱阳县油墩街中学高二下学期期中考试理科数学
(已下线)2010-2011年江西省鄱阳县油墩街中学高二下学期期中考试理科数学江西省新余市2016-2017学年高二下学期期末质量检测数学(理)试题(已下线)2011届广东省深圳高级中学高三上学期期中考试数学理卷(已下线)2010-2011学年重庆市“名校联盟”高二第一次联考文科数学试卷(已下线)2013届云南玉溪一中高三上学期期中考试文科数学试卷(已下线)2012-2013学年山东省济宁市汶上一中高二12月质检理科数学试卷湖北省恩施州2019-2020学年高二上学期期末数学(理)试题
名校
10 . 如图所示,椭圆
:
(
)的离心率为
,左焦点为
,右焦点为
,短轴两个端点
、
,与
轴不垂直的直线
与椭圆
交于不同的两点
、
,记直线
、
的斜率分别为
、
,且
.
![](https://img.xkw.com/dksih/QBM/2018/1/10/1857172837933056/1858347921252352/STEM/b2fcfb40958b4717b8d7b89b2f2dcdef.png?resizew=156)
(1)求椭圆
的方程;
(2)求证直线
与
轴相交于定点,并求出定点坐标;
(3)当弦
的中点
落在
内(包括边界)时,求直线
的斜率的取值.
![](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/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/075ba8c6fb5ef7288cd3fed425c8e69e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9b58716499ed988f860f08296e9ec67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdde36b4b2592015f9f69cd8a59841c6.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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](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/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5320135f43c7a4be29c2908b7a9638d4.png)
![](https://img.xkw.com/dksih/QBM/2018/1/10/1857172837933056/1858347921252352/STEM/b2fcfb40958b4717b8d7b89b2f2dcdef.png?resizew=156)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)求证直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(3)当弦
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b42fc33bcfc63ec2f4940ccd3f862400.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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