已知椭圆
,左、右焦点分别为
、
,
为椭圆上任意一点,过
的直线
与椭圆
交于
、
两点.
![](https://img.xkw.com/dksih/QBM/2020/12/24/2621202388566016/2622662195265536/STEM/81ec25f2-0df1-4d7b-91de-be14b6a5c132.png?resizew=246)
(1)当
轴时,求
的最大值;
(2)点
在线段
上,且
,点
关于原点对称的点为点
,求
面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/279cefeb5c389a37a71e5fd3925f5954.png)
![](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/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.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)
![](https://img.xkw.com/dksih/QBM/2020/12/24/2621202388566016/2622662195265536/STEM/81ec25f2-0df1-4d7b-91de-be14b6a5c132.png?resizew=246)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24624dffd30b66a5e4de57362b32b2a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8bb3bc743a659c9870943d44a9da90b.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78b661c79b7b866204fd4084c37bdd4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72b886208c6c2df19b984f2631e1c996.png)
2020·全国·模拟预测 查看更多[6]
2020年普通高校招生全国统一考试猜题密卷A卷理科数学试题黑龙江省大庆中学2020-2021学年高三10月月考数学(理)试题浙江省湖州市长兴中学2020-2021学年高二上学期12月月考数学试题(已下线)专题10 《圆锥曲线与方程》中的最值问题-2021-2022学年高二数学同步培优训练系列(苏教版2019选择性必修第一册) 江西省宜春市2020-2021学年高二年级上学期期末质量监测数学(理)试题(已下线)专题40 圆锥曲线中参数范围与最值问题-2
更新时间:2020-12-26 20:02:48
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