名校
解题方法
1 . 已知椭圆
.
(1)若
为椭圆上一定点,证明:直线
与椭圆
相切;
(2)若
为椭圆外一点,过
作椭圆
的两条切线,切点分别为
,直线
分别交直线
于
两点,且
的面积为8.问:在
轴是否存在两个定点
,使得
为定值.若存在,求
的坐标;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74f7981bd8103fb549c776401005fb12.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf0d139c9810361b4971904a943856b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/587026a84038002f2f7d4969af4465c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf0d139c9810361b4971904a943856b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86e203b7c9a6600e0272c58a23733490.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a88b4b3566c7fc49b91d5484b22b2a74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ebaa32f4f1f4f807ca9aeb7fb29951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7638c88f01d609d79947033ed4ff36a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13d1a97f8292b06dcbb3a78351e66359.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7638c88f01d609d79947033ed4ff36a2.png)
您最近一年使用:0次
2023-05-14更新
|
688次组卷
|
2卷引用:黑龙江省哈尔滨师范大学附属中学2023届高三第三次模拟考试数学试题
名校
解题方法
2 . 设直线
与直线
相交于一点
.
(1)求点
的坐标;
(2)求经过点
,且垂直于直线
的直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b66b4d8ac9d663e693fd63caa2c6503.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba6130d50fa96d22d13a412b42605665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)求经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2021-12-10更新
|
964次组卷
|
5卷引用:黑龙江省哈尔滨市第三十二中学2021-2022学年高三上学期期末考试数学(理)试题
名校
3 . 已知直线
与直线
,
为它们的交点,点
为平面内一点.求
(1)过点
且与
平行的直线方程;
(2)过
点的直线,且
到它的距离为2的直线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2079ed7990a63ba8d786a05a1c89994.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce60d09c50da9fe183e3f484c6cc4aad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf2b1410f44205658cea90e9ce85101c.png)
(1)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2017-10-04更新
|
763次组卷
|
3卷引用:黑龙江省伊春市第二中学2018届高三上学期第一次月考数学(文)试题