名校
1 . 椭圆
的左焦点为
,直线
与椭圆相交于点
,当
的周长最大时,
的面积是______________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e24e1ca85c8bab97cdf9909fe1bcd75c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36d71f015144ffaf1faec94a259b4a06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1f5451c5af5c3987e91c4541a7f8b77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1f5451c5af5c3987e91c4541a7f8b77.png)
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2016-12-04更新
|
776次组卷
|
6卷引用:2016届上海市七宝中学高三模拟理科数学试卷
2016届上海市七宝中学高三模拟理科数学试卷2016届上海市七宝中学高三模拟考试数学(理)试卷宁夏育才中学2018届高三上学期月考5(期末)数学(理)试题上海市南模中学2017-2018学年高二上学期期中数学试题上海市南洋模范中学2016-2017学年高二上学期期中数学试题(已下线)课时36 椭圆-2022年高考数学一轮复习小题多维练(上海专用)
2 . 如图,
为椭圆
的长轴的左、右端点,
为坐标原点,
为椭圆上不同于
的三点,直线
围成一个平行四边形
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26df2769a0b9306489fed9553b7ba50d.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00442d96d695db2c58bf1fb7165fca94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb4717d7fa6d522090c5e949f650bd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d3a7b5670155d3a7bbe2f6b8a249850.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00442d96d695db2c58bf1fb7165fca94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02d3c18f9f24fcc766e90148d5fbe590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b978a095d4bac4da3a807575d9b35e8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26df2769a0b9306489fed9553b7ba50d.png)
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572935132561408/1572935138566144/STEM/ecffe8622f6943699c12386bfb428185.png?resizew=244)
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2016-12-04更新
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501次组卷
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2卷引用:2016届四川南充高中高三4月模拟三文科数学试卷
3 . 已知点P是椭圆
上的在第一象限内的点,又
、
,O是原点,则四边形OAPB的面积的最大值是_________ .
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572679131873280/1572679137640448/STEM/96996492122e423d87a97793569994af.png?resizew=80)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572679131873280/1572679137640448/STEM/805daa52b11b4f90a7761c5e726d84b2.png?resizew=47)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572679131873280/1572679137640448/STEM/78e5ea5c6d8e47bf9020353b655009c3.png?resizew=44)
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名校
4 . 已知椭圆:
,左右焦点分别为F1,F2,过F1的直线l交椭圆于A,B两点,若|BF2|+|AF2|的最大值为5,则b的值是_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40c1fb9f8b59508b1b58180c899d1787.png)
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2016-12-04更新
|
1051次组卷
|
9卷引用:2015-2016学年湖南衡阳八中高二下第一次月考理科数学卷
2015-2016学年湖南衡阳八中高二下第一次月考理科数学卷苏教版高中数学 高三二轮 专题17 圆锥曲线综合问题 测试(已下线)数学-6月大数据精选模拟卷02(上海卷)(满分冲刺篇)江苏省盐城市东台中学2020-2021学年高二上学期期中数学试题(已下线)3.1.1 椭圆及其标准方程(练习)(已下线)专题10 解析几何(讲)-2021年高考数学二轮复习讲练测(新高考版)(已下线)专题10 解析几何(讲)-2021年高考数学二轮复习讲练测(文理通用)(已下线)专题41椭圆-2022年(新高考)数学高频考点+重点题型(已下线)第01讲 椭圆(讲)
解题方法
5 . 已知椭圆
的中心为坐标原点,离心率为
,
的右焦点与抛物线
的焦点重合,
是
的准线与
的两个交点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f21b82181bf5d8655b7e818025ef86e9.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7366f83ba433cd87ff9a6f88087e58d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f21b82181bf5d8655b7e818025ef86e9.png)
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名校
6 . 已知椭圆
左焦点为
,
、
、
是该椭圆上不同的三点,若
是
的重心,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14114c36b75407c2b8313faf57d15bc7.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44d12ebd10f6c0bcf98be52c32b107f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14114c36b75407c2b8313faf57d15bc7.png)
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2016-12-04更新
|
750次组卷
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2卷引用:2015-2016学年重庆市南开中学高二上期中理科数学试卷
名校
7 . 直线y=x-1被椭圆
截得的弦长为 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82e7d9f4f7ace849e09e9adcb786b7f.png)
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2016-12-03更新
|
1043次组卷
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3卷引用:2014-2015学年河南省濮阳市一中高二上学期第三次质量检测数学试卷
2014·上海·一模
8 . 过点
且方向向量为
的直线交椭圆
于
两点,记原点为
,
面积为
,则![](https://img.xkw.com/dksih/QBM/2014/6/3/1571751532740608/1571751538163712/STEM/853ee078dbb54e4fa370b06cf6551895.png?resizew=59)
_______
![](https://img.xkw.com/dksih/QBM/2014/6/3/1571751532740608/1571751538163712/STEM/5490e1b1288947358c0b88c3dd7e806f.png?resizew=119)
![](https://img.xkw.com/dksih/QBM/2014/6/3/1571751532740608/1571751538163712/STEM/de8d0b6e49324b2ea9dfa27ae8cae0c2.png?resizew=32)
![](https://img.xkw.com/dksih/QBM/2014/6/3/1571751532740608/1571751538163712/STEM/0a6e6c2968a7457aa653b9f752e1826e.png?resizew=79)
![](https://img.xkw.com/dksih/QBM/2014/6/3/1571751532740608/1571751538163712/STEM/f129ddbf2ae142d8b663d30e37bd9d19.png?resizew=44)
![](https://img.xkw.com/dksih/QBM/2014/6/3/1571751532740608/1571751538163712/STEM/7db011a49aac45928985428baa35be53.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2014/6/3/1571751532740608/1571751538163712/STEM/01aad4565d48405fba44a16e69cec5b0.png?resizew=57)
![](https://img.xkw.com/dksih/QBM/2014/6/3/1571751532740608/1571751538163712/STEM/a645c29d2ae343129a434da62609c2e3.png?resizew=20)
![](https://img.xkw.com/dksih/QBM/2014/6/3/1571751532740608/1571751538163712/STEM/853ee078dbb54e4fa370b06cf6551895.png?resizew=59)
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解题方法
9 . 已知P为椭圆
上一点,F1、F2为椭圆的左、右焦点,B为椭圆右顶点,若
平分线与
的平分线交于点
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a34dabf405c57f62c4ebf7067c26d4.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a54279c4529827581bbeaa76c1beb437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee821d632defaf8c7d29fa77470f4e4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea31ed5a585937f6811bb2818841df1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a34dabf405c57f62c4ebf7067c26d4.png)
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