已知椭圆
过点B(0,1),A为其左顶点,且直线AB的斜率为
.
(1)求E的方程;
(2)不经过B点的直线l与E相交于C,D两点,若两直线BC,BD的斜率之和为
,求直线l所过的定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(1)求E的方程;
(2)不经过B点的直线l与E相交于C,D两点,若两直线BC,BD的斜率之和为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
21-22高二下·湖北恩施·期中 查看更多[4]
湖北省恩施州高中教育联盟2021-2022学年高二下学期期中数学试题内蒙古自治区赤峰市赤峰二中2021-2022学年高二下学期第二次月考理科数学试题(已下线)2022年全国高考乙卷数学(文)试题变式题13-16题(已下线)2022年全国高考乙卷数学(文)试题变式题21-23题
更新时间:2022-05-15 22:06:19
|
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】已知椭圆E的右焦点与抛物线
的焦点重合,点M
在椭圆E上.
(Ⅰ)求椭圆E的标准方程;
(Ⅱ)设
,直线
与椭圆E交于A,B两点,若直线PA,PB关于x轴对称,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de261e9b4defbc0be6440397031a87b8.png)
(Ⅰ)求椭圆E的标准方程;
(Ⅱ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a297f399ee48fe07cd6aacc935a1c46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6767830cc1811f0f4ea5a008fdc7e723.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐2】已知椭圆
:
(
),右焦点
,点
在椭圆上;
(1)求椭圆C的标准方程;
(2)是否存在过原点的直线l与椭圆C交于A、B两点,且
?若存在,请求出所有符合要求的直线;若不存在,请说明理由.
![](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/62d314b47d37c9f58e05ad11f3e68e27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31f447e01458ed66dad263feb6a35081.png)
(1)求椭圆C的标准方程;
(2)是否存在过原点的直线l与椭圆C交于A、B两点,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/243a9ae75886b75c37f88a0ba655fa31.png)
您最近一年使用:0次
【推荐1】已知椭圆
的离心率为
,点
在椭圆
上,过点
的两条直线
,
分别与椭圆
交于另一点A,B,且直线
,
,
的斜率满足
.
(1)求椭圆
的方程;
(2)证明直线
过定点;
(3)椭圆C的焦点分别为
,
,求凸四边形
面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174142f3bba761585b6bc2653009b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baa1c1a159d2c73b894bc8664f2c0300.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/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b3ac28470679c107f0606482ca1da79.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)证明直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(3)椭圆C的焦点分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ad77c5823e9c6cd81d8d10055ef62a0.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐2】已知椭圆
的标准方程为
,该椭圆经过点
,且离心率为
.
(1)求椭圆的标准方程;
(2)过椭圆
长轴上一点
作两条互相垂直的弦
.若弦
的中点分别为
,证明:直线
恒过定点.
![](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/480f004c98a0df86a35a48bc973f0472.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(1)求椭圆的标准方程;
(2)过椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfc3e47a358860345e74450ce2af9f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c4cd264c97c1f261229925cc5a6761.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c4cd264c97c1f261229925cc5a6761.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
您最近一年使用:0次