1 . 已知椭圆
:
的左、右焦点分别为
,
,椭圆
的长轴长与焦距之比为
,过
且斜率不为
的直线
与
交于
,
两点.
(1)当
的斜率为
时,求
的面积;
(2)若在
轴上存在一点
,使
是以
为顶点的等腰三角形,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f392d61933568d27a27568c6298365bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4be1a9dd9a12e7a10fcc605ebf80bd78.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8555c4425d2ed4e05fb939d92fff633.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb5c51d59a6f24f91ab97e9d1f8c3e92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35cbd4d7f23cf6448235dbf320f8699c.png)
(2)若在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/150e8b13bc140ff554dafb56536ec902.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43d8df438fe1a86803155552db4295c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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2 . 已知椭圆
的左、右顶点分别为A,B,直线l斜率大于0,且l经过椭圆的右焦点F,与椭圆交于两点P,Q,若△AFP,△BFQ的面积分别为S1,S2,若
,则直线l的斜率为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/623567de59e50e4066c20804e9168ca9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ec1cb01930e99f68487b3ef7cedbc7b.png)
您最近一年使用:0次
2018-12-15更新
|
286次组卷
|
3卷引用:山东省临沂市郯城县第二中学2023-2024学年高二上学期期末复习模拟数学试题
12-13高二上·河北衡水·阶段练习
3 . 已知椭圆的中心在原点,焦点在
轴上,离心率为
,且经过点
,直线
交椭圆于不同的两点A,B.
(1)求椭圆的方程;
(2)求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3ba9d9535a1d7e34f66db9da0861394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d00a5df9d281dd4e1e45bf6a4d6fb27.png)
(1)求椭圆的方程;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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11-12高三上·山东潍坊·阶段练习
4 . 一条斜率为1的直线
与离心率
的椭圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d72a07a4e5acfc140a3cea1f26b951.png)
交于
两点,直线
与
轴交于点
,且
,
,求直线
和椭圆
的方程;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/075ba8c6fb5ef7288cd3fed425c8e69e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d72a07a4e5acfc140a3cea1f26b951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/434249d6640b0c1a712d215cf8b83d5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5b1b15a4605fce993cb13aefbf40360.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f178fb57119c68483457c4f43a30b773.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4c2c2cd5969403f7df0af517e7a0f29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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