已知椭圆
的左焦点为
,直线
与圆
交于
,
两点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/3/4f18e658-e5c5-4e2e-83ab-94c5d60c7f3b.png?resizew=170)
(1)若直线
过点
,且
,求
被椭圆
所截得的弦的长度;
(2)若已知点
在椭圆
上,动点
满足
,请判断点
与圆
的位置关系,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ff1455a4045eb93f482c0751840aea7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45c3a46e5bfc1b480c6e6e77928494e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb1b9f5ce8f485799a581120e8fbabb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/3/4f18e658-e5c5-4e2e-83ab-94c5d60c7f3b.png?resizew=170)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/179d7920ec6cd22f3a0cfa6738260153.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)若已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c846ac5f5576ebb3fb28bba8012f390.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c8a54cc1d1c28aa425dc77d5784bb67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
更新时间:2020-02-14 15:31:38
|
相似题推荐
【推荐1】已知
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(1)求
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且
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与椭圆
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,过点
且平行于直线
的直线交椭圆
于另一点
,问:四边形
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(1)求
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(2)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b24e05860d48776aa2c18269d9c2e0.png)
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解答题-问答题
|
较难
(0.4)
名校
解题方法
【推荐2】已知椭圆
的左、右焦点为
、
,A为椭圆C上的任一点,且
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.
(1)求椭圆的离心率e的取值范围;
(2)当椭圆C经过点
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的直线(不经过点P)与椭圆C交于两点M和N,线段MN的垂直平分线与y轴交于点Q,当点Q的纵坐标的取值范围是
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2cfd997d3b66a3b8f7731b26f0ab0c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f92fb648531da4e62f0978905eb92f.png)
(1)求椭圆的离心率e的取值范围;
(2)当椭圆C经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/480f004c98a0df86a35a48bc973f0472.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08862833508abd5c124476423c548bee.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
解题方法
【推荐1】已知椭圆
以直线
所过的定点为一个焦点,且短轴长为4.
(1)求椭圆
的标准方程;
(2)已知椭圆
的中心在原点,焦点在
轴上,且长轴和短轴的长分别是椭圆
的长轴和短轴的长的
倍
,过点
的直线
与椭圆
交于
,
两个不同的点,若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afef290d0ebd0735921b40085a1b2d9f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)已知椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b1383c491b7d7fe96e01c7598159037.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca0b4afd16b79370532de44989d6c43d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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【推荐2】已知椭圆E的方程为
(
),
,
分别为椭圆的左右焦点,A,B为椭圆E上关于原点对称两点,点M为椭圆E上异于A,B一点,直线
和直线
的斜率
和
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.
(1)求椭圆E的标准方程;
(2)过
作直线l交椭圆于C,D两点,且
(
),求
面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2f2f1bc9679a4facbfe9e38619d0166.png)
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![](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/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddf41eff7a1310a7dcba4b236e0543ed.png)
(1)求椭圆E的标准方程;
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f8f01137e92c0f2e63467036ae9cce.png)
您最近一年使用:0次