名校
1 . 已知双曲线
:
(
)的离心率为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
.
(1)求双曲线的标准方程;
(2)过点
直线
与双曲线
相交于
两点,
为坐标原点,已知
的面积为
,求直线的斜率
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f3fa0b40fb0d9b8c62e37316ab3b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2684b72f9f38f5046c8ecd4280b7b14b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0ebd28246358d47e6db906335bd7fa1.png)
(1)求双曲线的标准方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82a2480160e130d96b1528d6db19b874.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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b8189f7b0ffe4d20bf0fad43b4ed589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3288dbdaebfb69809b75a0ca9aa13ee6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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解题方法
2 . 已知椭圆C:
,P为C的下顶点,F为其右焦点,点G的坐标为
,且
,椭圆C的离心率为
.
求椭圆C的标准方程;
已知点
,直线l:
交椭圆C于不同的两点A,B,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00df4f17848c072b51e80d427d486e31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dca297454a6c27b49cf8bf795d96974a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ea32cff19a8f862825ddca1d107e617.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca9c6fe12d3a9727e00ef87a630302ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea92d182127d4523c0c0276b4d9dfac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a866f54ca8c81e6a4ba6ea8cf13eee9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7420d1ec7a19d42cdf0b40a68dda0ad8.png)
您最近一年使用:0次
2019-03-18更新
|
620次组卷
|
2卷引用:【区级联考】重庆市九龙坡区2018-2019学年高二(上)期末数学(文科)试题
3 . 已知直线
过点
,椭圆
,则直线
与椭圆
的交点个数为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b43dbfd1922f2bdbd197c1435c4bf63f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d55ceed6eacc66c4e0f7b62f10fc3caa.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/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
A.1 | B.1或2 | C.2 | D.0 |
您最近一年使用:0次
名校
4 . 双曲线M:
过点
,且它的渐近线方程是
.
(1)求双曲线M的方程;
(2)设椭圆N的中心在原点,它的短轴是双曲线M的实轴,且椭圆N中斜率为
的弦的中点轨迹恰好是M的一条渐近线截在椭圆N内的部分,试求椭圆N的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f3fa0b40fb0d9b8c62e37316ab3b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcb083f696cae565d782770a57e23f87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/060e229870f126b31e37965bc0c58667.png)
(1)求双曲线M的方程;
(2)设椭圆N的中心在原点,它的短轴是双曲线M的实轴,且椭圆N中斜率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fb134b2b48acc99213fff6ccfee65f.png)
您最近一年使用:0次
2019-03-12更新
|
513次组卷
|
2卷引用:上海市七宝中学2018-2019学年高二上学期期末考试数学试题
5 . 设椭圆C:
的焦距为4,离心率为
,斜率为k的直线l经过点
,与椭圆C交于不同的两点A、B
求椭圆C的标准方程;
当椭圆C的右焦点F在以AB为直径的圆内时,求k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b25e326fdf9e5456f48e8a99a069f379.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf6c84731e5e1bd335ecfc2d36c3d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f53190d6ead827a6338b9de847aeaf1.png)
您最近一年使用:0次
6 . 已知椭圆E:
的离心率为
,且过点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2af0e5b4896e645413dbeb0ba736613.png)
求椭圆E的方程;
设直线
与椭圆E交于A、B两点,与x轴、y轴分别交于C、D两点
且C、D在A、B之间或同时在A、B之外
问:是否存在定值k,使得
的面积与
的面积总相等,若存在,求k的值,并求出实数m取值范围;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00df4f17848c072b51e80d427d486e31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eff998d034284391ca064755fa6bf1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2af0e5b4896e645413dbeb0ba736613.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39fd87f52e60e9ec55400aa885f3c19b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a999fda5febcf29a602dc236e5f65de2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/316510e4a0e51d1d69849d62167c9923.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c8fdb7f8c7588f3f11e5f82870b54bb.png)
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7 . 如图,在平面直角坐标系xOy中,椭圆
过点
,
,其中e为椭圆的离心率,过定点
的动直线l与椭圆交于A,B两点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/5/eec5c8c1-e652-4624-b046-ee8023333f18.png?resizew=199)
求椭圆的方程;
设椭圆的右准线与x轴的交点为M,若
总成立,求m的值;
是否存在定点
其中
,使得
总成立?如果存在,求出点M的坐标
用m表示
;如果不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00df4f17848c072b51e80d427d486e31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5787b3d4d9ab6aad4c73a35993e1ba2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf992e9fc9d23664f7a7b3cd6fbe906f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ec9ca77200280c2696202517ef88067.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/5/eec5c8c1-e652-4624-b046-ee8023333f18.png?resizew=199)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4256bbfa8f3be744a77598a133fe52e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4bb89a362c1faf4d0c306eabbb59710.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ec61d2179863351bfae4e3e8a49cf41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80d61c6ddf6afa7d78122fe57df96ff8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1609bd7022e34f5c4a5b9bc7a9cd87a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00674bab694988593ecbfb918fe9d60d.png)
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8 . 在平面直角坐标系xOy中,椭圆
的左,右焦点分别为
,
,上顶点为A,射线
交椭圆于
若
的面积为
,内角A为
,则椭圆的焦距为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00df4f17848c072b51e80d427d486e31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a09a8ac969e5cec3be6abf4ff44c692e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce6758b8b074d33ea9e82818593656e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78aa834961df10c8bc3c64615fb79f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2639ce6b7c38975bcbd7c2d9814da324.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1086bf902062562c198032cbcbb7faf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26f26a1fa02b66554d41b65249601610.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fe8dc472dade6cea6943164792ab532.png)
您最近一年使用:0次
9 . 设
是圆
上的任意一点,
是过点
且与
轴垂直的直线,
是直线
与
轴的交点,点
在直线
上,且满足
当点
在圆
上运动时,记点
的轨迹为曲线
.
求曲线
的方程;
已知直线
与曲线
交于
两点,点
关于
轴的对称点为
,设
,证明:直线
过定点,并求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5188ee5dc818c15ac98b9910821bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](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/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2e23b938e9bcb9c1d1875203fb8a462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f10cfd01b5030ad67bd83db8cb894884.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7490886e2807c7b8a4fa57d99c4dc3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e89a7e0f6cb1d8f5e3ec443252c42fdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4bbf7acc38d391682378a7509dc04d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c93e5411774346933a146c6438cc7c3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d8a64c2595bf9f8f3505ac4a3b30452.png)
您最近一年使用:0次
2019-03-06更新
|
549次组卷
|
2卷引用:【市级联考】吉林省白山市2018-2019学年高二上学期期末联考数学(理)试题
10 . 已知椭圆C:
,过点
的直线l与椭圆C交于A,B两点,若A是线段PB的中点,则点A的坐标为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6810ef578830377c2d5371b90691c3a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f375949ce2d912e67b446eb2bbdf0cc8.png)
您最近一年使用:0次
2019-03-04更新
|
357次组卷
|
2卷引用:【市级联考】江苏省泰州市2018-2019学年高二第一学期期末考试数学(理科)试题