1 . 已知点
在椭圆
上,直线l与椭圆C交于P,Q两点,直线
的斜率之和为0.
(1)若
,求直线l的方程.
(2)求弦长
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e90064d012356de1877aa697cd6d6ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92d5df6f72598480008a87d27d2579d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17fad351c57c4b3ad3229769d30e1d43.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ff715732cb3d4f62ea23ec7006fae3.png)
(2)求弦长
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f82358b724051b032c7ec734a226ae84.png)
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11-12高二上·江苏淮安·期中
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2 . 已知三条直线
,
和
.
(1)若此三条直线不能构成三角形,求实数
的取值范围;
(2)已知
,能否找到一点
,使得
点同时满足下列三个条件:①
是第一象限的点;②
点到
的距离是
点到
的距离的
;③
点到
的距离与
点到
的距离之比是
.若能,试求
点坐标;若不能,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08a56de6d0cc67cb3700c6a9a12966dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0789e813ae80dba25d47a237f3ce7db2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01dac6f9c080c3c956c6d3839be8786f.png)
(1)若此三条直线不能构成三角形,求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cdb9d8425d73a68731f30e0c0e22260.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9fce9427c9b17e4d3cda0c3ff3e2e14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e64e76a4c1e5934f51cdca2ffbc8313f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2016-12-01更新
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1656次组卷
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4卷引用:湖北省武汉市第十九中学2022-2023学年高二上学期10月月考数学试题
湖北省武汉市第十九中学2022-2023学年高二上学期10月月考数学试题湖北省武汉市第三中学2022-2023学年高二上学期10月月考数学试题(已下线)2011-2012学年江苏省淮安中学高二上学期期中考试数学试卷(已下线)难关必刷02直线与方程-【满分全攻略】2023-2024学年高二数学同步讲义全优学案(人教A版2019选择性必修第一册)