解题方法
1 . 在平面直角坐标系
中,椭圆
经过点
,且点
与椭圆的左、右顶点连线的斜率之积为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/22/84b8a727-86f9-461a-9346-7bacb41d7d9f.png?resizew=193)
(1)求椭圆
的方程;
(2)若椭圆
上存在两点
,使得
的垂心(三角形三条高的交点)恰为坐标原点
,试求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a818c7b7f571f7173feb9b73424d5ffe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3389f53711264b0acba3ba6019f8b908.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/22/84b8a727-86f9-461a-9346-7bacb41d7d9f.png?resizew=193)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8ca00309261a540934d9b3ed9ba05b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c28abb154f41e1ca9816c9c9c2433ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d7b816eca15d4b7d060013df53edd53.png)
您最近一年使用:0次
2 . 在平面直角坐标系
中,已知椭圆
过点
,离心率为
.
分别是椭圆
的上、下顶点,
是椭圆
上异于
的一点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/dad21c0e-7296-419a-b81a-4373e95e05f4.png?resizew=156)
(1)求椭圆
的方程;
(2)若点
在直线
上,且
,求
的面积;
(3)过点
作斜率为
的直线分别交椭圆
于另一点
,交
轴于点
,且点
在线段
上(不包括端点
),直线
与直线
交于点
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe8530b8e246a9a5ec9fe3b9c347d5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/dad21c0e-7296-419a-b81a-4373e95e05f4.png?resizew=156)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23fc11a3a7592c68b20f93bdde2ed3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6468bc15a5eb706d3fb536ee7f7ef3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f35a9ec7088381262f8ca327bd377660.png)
(3)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9cda46e575acf64941ea0964b89ee99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c023f4b501684abd869b36d6e6c7f21f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93fb1331642c01da9c171a651f05b239.png)
您最近一年使用:0次
2020-04-24更新
|
364次组卷
|
2卷引用:2019届江苏省南京市高三下学期第三次模拟考试数学试题
解题方法
3 . 如图,在平面直角坐标系
中,已知椭圆
:
的离心率为
,点
分别为椭圆
与坐标轴的交点,且
.过
轴上定点
的直线与椭圆
交于
,
两点,点
为线段
的中点.
![](https://img.xkw.com/dksih/QBM/2020/4/22/2446943416016896/2447917224828928/STEM/2504664a4c5d4b5f943b42e6f670f597.png?resizew=334)
(1)求椭圆
的方程;
(2)求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4471404188d423c54cd087e58b6546ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06201e4f55b78d8b30afb257d5a1b16b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33a62c9695f5a1691c5fe8724fa764b7.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/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://img.xkw.com/dksih/QBM/2020/4/22/2446943416016896/2447917224828928/STEM/2504664a4c5d4b5f943b42e6f670f597.png?resizew=334)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16e8c7968d57d2a20065a7cb15c9b4eb.png)
您最近一年使用:0次
4 . 如图,在平面直角坐标系xOy中;已知椭圆
的焦距为2,一条准线方程为
,设过右焦点F任意作一条直线l交椭圆E于M,N两点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/2/b6a2dc95-48fd-4113-995f-7b18f571802d.png?resizew=181)
(1)求椭圆E的标准方程;
(2)若直线l的斜率为1,求弦长MN的值;
(3)设点P在线段MN上运动,右顶点A关于点P的对称点为点C,求四边形AMCN面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a200ca2c4af794f4d1c6a5443830b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/2/b6a2dc95-48fd-4113-995f-7b18f571802d.png?resizew=181)
(1)求椭圆E的标准方程;
(2)若直线l的斜率为1,求弦长MN的值;
(3)设点P在线段MN上运动,右顶点A关于点P的对称点为点C,求四边形AMCN面积的最大值.
您最近一年使用:0次
名校
解题方法
5 . 设
为椭圆
在第一象限上的点,则
的最小值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8701e0cce437edc830438b4fe6277d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/914075a4574c09bdb860d8f8f09a4e7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f6684b26e394132206437aa6e6cf3c8.png)
您最近一年使用:0次
2020-04-17更新
|
332次组卷
|
2卷引用:2019届江苏省南京大学附属中学高三三模数学试题
名校
解题方法
6 . 如图,已知四棱锥
的底面是菱形,对角线
,
交于点
,
,
,
,
底面
,设点
满足
.
![](https://img.xkw.com/dksih/QBM/2020/4/16/2442972162203648/2443665956724736/STEM/05ae41ba23a548d9b3901fb533e4333d.png?resizew=174)
(1)若
,求二面角
的大小;
(2)若直线
与平面
所成角的正弦值
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f561a36cc4c9293d8a63ee4e1a7146b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55e2857963e3ea3578e9a13638c3a2c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b02672185596d0be60de9e2e93afb59e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbc6f007dbf1c1a36eb031e520608403.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75ff968fd0709d072c7a4b7000a411e4.png)
![](https://img.xkw.com/dksih/QBM/2020/4/16/2442972162203648/2443665956724736/STEM/05ae41ba23a548d9b3901fb533e4333d.png?resizew=174)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1c3ea872a20fdc1843cb5ffce8a554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2e9ac46aabe38e5ea1a8cb0febc98af.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bc46688d8723cf2003fc25890265200.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d83fb9ac8a18e78a4c56da79514b5ccb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2020-04-17更新
|
1290次组卷
|
5卷引用:江苏省扬州市高邮市2018-2019学年高二下学期期中数学(理)试题
江苏省扬州市高邮市2018-2019学年高二下学期期中数学(理)试题江苏省镇江市扬中市第二高级中学2020-2021学年高三上学期初检测数学试题重庆市暨华中学2020-2021学年高二上学期第二次月考数学试题辽宁省抚顺市抚顺县高级中学校2021-2022学年高二上学期10月月考数学试题(已下线)专题4.1 第一、二章(空间向量与立体几何、直线和圆的方程)阶段检测-【满分计划】2021-2022学年高二数学阶段性复习测试卷(人教A版2019选择性必修第一册)
名校
7 . 点M是棱长为6的正方体
的内切球O球面上的动点,点N为
上一点,
,
,则动点M运动路线的长度为
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/94e4d7c5-02e7-40de-8889-02056c927bcc.png?resizew=179)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84f23a20779cbf15d4300ffc69f27f14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15e54038fa9518fc9a3aa2cb97a74196.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3515d2d64577cae922236ed8e2ccd39c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73d3505c92b870c0dea9d9e8575f7523.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/94e4d7c5-02e7-40de-8889-02056c927bcc.png?resizew=179)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
8 . 如图,已知椭圆
经过点
,且离心率
,过右焦点
且不与坐标轴垂直的直线
与椭圆
相交于
两点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/485c8cac-3216-420f-957e-00c12cfcbd36.png?resizew=164)
(1)求椭圆
的标准方程;
(2)设椭圆
的右顶点为
,线段
的中点为
,记直线
的斜率分别为
,求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea33baec6ac30ceb415e74dfbeef569a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c7316976a221c051a2c14df80b1347.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/7789a500686c7a73770404ead6af0590.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/485c8cac-3216-420f-957e-00c12cfcbd36.png?resizew=164)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设椭圆
![](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/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43788f25f06d16ec111b3592e610966f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/388737b5d38e8aa7bc8cfb1da4f9fc69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/624b176ead62f76199d3e1217336eeb8.png)
您最近一年使用:0次
名校
9 . 已知双曲线C的方程是:
(
,
),则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f3fa0b40fb0d9b8c62e37316ab3b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
A.当![]() ![]() |
B.过双曲线C右焦点F的直线与双曲线只有一个交点的直线有且只有2条; |
C.过双曲线C右焦点F的直线与双曲线右支交于M,N两点,则此时线段![]() |
D.双曲线C与双曲线:![]() ![]() ![]() |
您最近一年使用:0次
解题方法
10 . 在平面直角坐标系
中,点
,过动点
作直线
的垂线,垂足为
,且
.记动点
的轨迹为曲线
.
(1)求曲线
的方程;
(2)过点
的直线
交曲线
于不同的两点
,
.
①若
为线段
的中点,求直线
的方程;
②设
关于
轴的对称点为
,求
面积
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/913f78382630e50543e5f7192cae3ed3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a089c207e39a24d0d82aa853ac2bbb8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29f9f60c8240c956ef340ca4b9ee8c59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
②设
![](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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f8f01137e92c0f2e63467036ae9cce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
您最近一年使用:0次
2020-04-06更新
|
785次组卷
|
3卷引用:江苏省南京市2019-2020学年高二上学期期中数学试题