解题方法
1 . 已知椭圆
的左右焦点分别为
.过点
倾斜角为
的直线
与椭圆
相交于
,
两点(
在
轴的上方),则下列说法中正确的有( )个.
①![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1872463b88b5110c9d4af1eb88bd46c2.png)
②![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e707263f58aabdb3a9505ed15c5ef800.png)
③若点
与点
关于
轴对称,则
的面积为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4258df266c374e41c1ac14a9229a400.png)
④当
时,
内切圆的面积为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4c88afc22f135000f63e37d48bdc433.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/279cefeb5c389a37a71e5fd3925f5954.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.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://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1872463b88b5110c9d4af1eb88bd46c2.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e707263f58aabdb3a9505ed15c5ef800.png)
③若点
![](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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1e1d6fd0ab1b8bdfe1ac6c8d686d22c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4258df266c374e41c1ac14a9229a400.png)
④当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3e186ebc624ebacde9a03b96289f1ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5eb2485f90dbfd0dfd6e7d179a856f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4c88afc22f135000f63e37d48bdc433.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
2024-03-21更新
|
929次组卷
|
4卷引用:四川省南充市2024届高三高考适应性考试(二诊)理科数学试题
四川省南充市2024届高三高考适应性考试(二诊)理科数学试题四川省南充市2024届高三高考适应性考试(二诊)文科数学试题(已下线)专题5 焦点弦长 公式性质 练(高考真题素材库之典型好题母题)(已下线)压轴小题10 椭圆中焦点三角形综合问题(压轴小题)
解题方法
2 . 已知点
在椭圆
上,
,
是椭圆的左、右焦点,若
,且
的面积为2,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.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/2ae2866c5c6a9d4036250d013a38c18f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13bc696ff89b2b107bb45029ddf9f114.png)
A.2 | B.3 | C.4 | D.5 |
您最近一年使用:0次
2023-12-22更新
|
919次组卷
|
5卷引用:四川省凉山彝族自治州2024届高三第一次诊断性检测数学(理科)试题
四川省凉山彝族自治州2024届高三第一次诊断性检测数学(理科)试题四川省凉山彝族自治州2024届高三第一次诊断性检测数学(文科)试题(已下线)模块一 专题2 解析几何(1)(已下线)模块5 周期变化篇 专题4:解三角形以及实际应用【练】(已下线)微考点6-4 利用二级结论秒杀椭圆双曲线中的选填题
名校
3 . 已知椭圆
的左、右顶点分别是
是坐标原点,
在椭圆
上,且
,则
的面积是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b3cfb07fcf2c1bf055d517631d80b7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef644115c956ed62c3da8310c6f67ecd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8252498f6620f9b3fd525d08595a14d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
A.![]() | B.4 | C.![]() | D.8 |
您最近一年使用:0次
2023-05-19更新
|
758次组卷
|
7卷引用:四川省南江中学2023届高三下学期五月适应性考试(一)理科数学试题
解题方法
4 . 已知椭圆C:
的左、右焦点分别为
,
,点M是椭圆上任意一点.当点M不在x轴上时,设
的内切圆半径为m,外接圆半径为n,则
的最大值为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae00bdc6f8b564b6b15b32572c848b.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/b42fc33bcfc63ec2f4940ccd3f862400.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1019d4ad2e3fb4a7abb66e0e9e55b556.png)
A.![]() | B.![]() | C.![]() | D.1 |
您最近一年使用:0次
解题方法
5 . 已知椭圆
的左、右焦点分别为
,直线
与椭圆
相交于
两点.有下列结论:
①四边形
为平行四边形;
②若
轴,垂足为
,则直线
的斜率为
;
③若
(
为坐标原点),则四边形
的面积为
;
④若
,则椭圆的离心率可以是
.
其中错误结论的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/475a3fdc7b27d5ffa8c864dc478903d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b343d77ee4dced82ecc479206c42977d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
①四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfffd420523729074995e9e55f464d4c.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8178c63d125ee6235feeb2fc70d02745.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7500ce8bce3d902c25c224de4c44bd7.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/105dcc84f3af3a23d2638f7831678180.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfffd420523729074995e9e55f464d4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a881309775c3b6a9f4ed408838666342.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9766e5e316ac8e8ecae1779070799a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
其中错误结论的个数是( )
A.1 | B.2 | C.3 | D.0 |
您最近一年使用:0次
解题方法
6 . 坐标原点
且斜率为
的直线
与椭圆
交于
、
两点.若点
,则
面积的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9700ce79eeb1fa4503dbf3c6cc36e79b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82e7d9f4f7ace849e09e9adcb786b7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b3121286332a886070029e070fea0e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26a7c9570b87e6a64bb21373f0938bb7.png)
A.![]() | B.![]() | C.![]() | D.1 |
您最近一年使用:0次
2020-09-16更新
|
669次组卷
|
4卷引用:四川省内江市2020届高三高考数学(文科)三模试题
四川省内江市2020届高三高考数学(文科)三模试题四川省内江市2020届高三下学期第三次模拟考试数学(文)试题(已下线)2021年高考数学(理)押题预测卷(新课标III卷)02(已下线)9.3 椭圆(精讲)-【一隅三反】2022年高考数学一轮复习(新高考地区专用)
7 . 已知平面内的一个动点P到直线l:x=
的距离与到定点F(
,0)的距离之比为
,点
,设动点P的轨迹为曲线C,过原点O且斜率为k(k<0)的直线l与曲线C交于M、N两点,则△MAN面积的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f83dbfddc6f98548699ed581e8c8608.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18483c9c195ecd922772527fa85c0fcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b3121286332a886070029e070fea0e4.png)
A.![]() | B.2![]() | C.![]() | D.1 |
您最近一年使用:0次
2020-07-23更新
|
499次组卷
|
3卷引用:四川省内江市2020届高三高考数学(理科)三模试题
名校
8 . 过抛物线y2=mx(m>0)的焦点作直线交抛物线于P,Q两点,若线段PQ中点的横坐标为3,
,则m=( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75b213c195d3b4da24b44b3d934930e4.png)
A.6 | B.4 | C.10 | D.8 |
您最近一年使用:0次
2018-08-29更新
|
839次组卷
|
8卷引用:【市级联考】四川省达州市2018届高三第四次模拟数学(文)试题