解题方法
1 . 已知O为坐标原点,椭圆
的左、右焦点分别为F1、F2,长轴长为
,焦距为2c,点P在椭圆C上且满足|OP|=|OF1|=|OF2|=c,直线PF2与椭圆C交于另一个点Q,若
,点M在圆
上,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6180e35dea06e69ccf6c38c28d0a42ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/250ded7c488a50e80f4c4b8a85500a16.png)
A.椭圆C的焦距为2 | B.三角形MF1F2面积的最大值为![]() |
C.![]() | D.圆G在椭圆C的内部 |
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2022-01-12更新
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5卷引用:湖北省武汉市部分重点中学2021-2022学年高二上学期期中联考数学试题
湖北省武汉市部分重点中学2021-2022学年高二上学期期中联考数学试题(已下线)专题14 解析几何中的范围、最值和探索性问题(练)--第一篇 热点、难点突破篇-《2022年高考数学二轮复习讲练测(新高考·全国卷)》(已下线)解密14 椭圆及其方程(讲义)-【高频考点解密】2022年高考数学二轮复习讲义+分层训练(新高考专用)(已下线)重难点12五种椭圆解题方法-1(已下线)3.1.2 椭圆的几何性质(难点)-2022-2023学年高二数学《基础·重点·难点 》全面题型高分突破(苏教版2019选择性必修第一册)
名校
解题方法
2 .
设分别为椭圆
的左右焦点,过
的直线l与椭圆C相交于A,B两点,直线的倾斜角为60度,
到直线l的距离为
.
(1)求椭圆C的焦距;
(2)如果
,求椭圆C的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
(1)求椭圆C的焦距;
(2)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70234eb8d90808471f1e7483b1582dc.png)
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2021-12-30更新
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4卷引用:北京师大实验2020-2021学年高二上学期期末试题
北京师大实验2020-2021学年高二上学期期末试题四川省凉山州西昌市2021-2022学年高二上学期期末检测数学(文)试题(已下线)专题3.1 椭圆(5个考点十四大题型)(1)(已下线)FHsx1225yl121
名校
解题方法
3 . 如图,已知椭圆
,抛物线
,点
是椭圆
与抛物线
的交点,过点
的直线
交椭圆
于点
,交抛物线
于点
(
,
不同于
).
![](https://img.xkw.com/dksih/QBM/2021/4/19/2703186616483840/2806396343255040/STEM/08170d8a-cc11-4e09-ba30-a7f1e9e2ade4.png?resizew=285)
(1)求椭圆
的焦距;
(2)设抛物线
的焦点为
,
为抛物线上的点,且
、
、
三点共线,若存在不过原点的直线
使
为线段
的中点,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ad5c24ed80bb57cb2ac412b7b0d74b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/398e247f8dcdda0ed9e6b81c99a50425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://img.xkw.com/dksih/QBM/2021/4/19/2703186616483840/2806396343255040/STEM/08170d8a-cc11-4e09-ba30-a7f1e9e2ade4.png?resizew=285)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)设抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](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/81a93ba2ec199e88b41acef626f1485d.png)
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名校
4 . 如图,在平面直角坐标系
中,椭圆
的左右焦点分别为
,
,椭圆
的弦
与
分别垂直于
轴与
轴,且相交于点
.已知线段
,
,
,
的长分别为2,4,6,12,则
的面积为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7795aec93c2c7ac2fd93e6747ca6516c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9125cf40f225e6ec6342ca327597871.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/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
![](https://img.xkw.com/dksih/QBM/2021/1/27/2645016453513216/2650047674900480/STEM/bef17e98-a4c7-4e6f-8e86-aae7cbd60356.png)
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