2024·全国·模拟预测
解题方法
1 . 已知点
为椭圆
的右焦点,直线
与椭圆交于
,
两点,直线
与椭圆交于另一点
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb4717d7fa6d522090c5e949f650bd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa841ce5d58b64f747a3c1b69bb20a5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
A.当直线![]() ![]() ![]() ![]() |
B.当![]() ![]() ![]() ![]() |
C.![]() ![]() |
D.当![]() ![]() ![]() |
您最近一年使用:0次
2024·全国·模拟预测
解题方法
2 . 已知椭圆
(
)的左、右焦点分别为
,
,过点
的直线
与椭圆
交于
,
两点(
点位于
点上方),且
,延长
,
分别交椭圆
于点
,
,连接
交
轴于点
,若
的面积是
的面积的3倍,则下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54976e19a9f87dfdd3b1c0eccac18aa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.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/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ffd154a2d2e0cf4ce5f6b15d2685975.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e86dbcf83cd5d3421b3eed7be7dab32d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3656055f5256cd06e636ea96e9f89c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9568bd0e4da5b470855a7bb47705731.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9116e096dea74380db2b76e5de6b47c2.png)
A.椭圆![]() ![]() | B.![]() ![]() |
C.![]() | D.直线![]() ![]() |
您最近一年使用:0次
解题方法
3 . 已知点
,直线l:
,动点P到点F的距离是点P到直线l的距离的一半.若某直线上存在这样的点P,则称该直线为“最远距离直线”,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092fd1b1d33979818300cd2e3699bff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
A.点P的轨迹方程是![]() |
B.直线![]() ![]() |
C.平面上有一点![]() ![]() |
D.点P的轨迹与圆C:![]() |
您最近一年使用:0次
2023-08-03更新
|
969次组卷
|
3卷引用:人教A版(2019) 选修第一册 模块检测卷
2023高三·全国·专题练习
解题方法
4 . 青花瓷又称白地青花瓷,常简称青花,中华陶瓷烧制工艺的珍品,是中国瓷器的主流品种之一,属釉下彩瓷.如图为青花瓷大盘,盘子的边缘有一定的宽度且与桌面水平,可以近似看成由大小两个椭圆围成.经测量发现两椭圆的长轴长之比与短轴长之比相等.现不慎掉落一根质地均匀的长筷子在盘面上,恰巧与小椭圆相切,设切点为
,盘子的中心为
,筷子与大椭圆的两交点为
,点
关于
的对称点为
.给出下列四个命题其中正确的是( )
![](https://img.xkw.com/dksih/QBM/2023/6/16/3260675753222144/3261667100196864/STEM/9dbd3c89d78c481e911d4f04616658d0.png?resizew=191)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/2023/6/16/3260675753222144/3261667100196864/STEM/9dbd3c89d78c481e911d4f04616658d0.png?resizew=191)
A.两椭圆的焦距长相等 | B.两椭圆的离心率相等 |
C.![]() | D.![]() |
您最近一年使用:0次
5 . 已知椭圆
的左、右焦点分别为
,直线y=m与C交于A,B两点(A在y轴右侧),O为坐标原点,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb27e0da15121c20426db4f348b97470.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
A.![]() |
B.当![]() |
C.若![]() ![]() |
D.存在实数m使得四边形ABF1O为平行四边形 |
您最近一年使用:0次
2023-05-10更新
|
955次组卷
|
3卷引用:云南省昆明市2023届高三“三诊一模”高考模拟考试数学试题
2023·全国·模拟预测
解题方法
6 . 已知
为坐标原点,椭圆
的左焦点为
,直线
与椭圆
交于点
,
(
在第一象限),
,P为
轴上一点,
,
面积的最大值为1,且直线
与椭圆的另一个交点为
,则当
的面积最大时,下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac02a054bd0771a56987af33454baaea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87a8f333a69aa8351213682d26e6c386.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd214356105f77c9ae1ccbf73eaabe0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c56b0348213284a19e2acc5a088fa491.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ffc7d1af9053b027cf9e726f5367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c56b0348213284a19e2acc5a088fa491.png)
A.![]() | B.点![]() ![]() |
C.![]() | D.![]() ![]() |
您最近一年使用:0次
解题方法
7 . 已知椭圆
的右焦点为F,过F作x轴的垂线交椭圆C于点P(P在第一象限),直线OP(O是坐标原点)与椭圆C另交于点A,直线AF与椭圆C另交于点B,若
,直线PA,PB,AB的斜率分别记为
,
,
,椭圆C的离心率为e,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83640592853a53872d7af69c0cffc1bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9626bd07f966ea26a51dcd8ceba04ff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edf32f4d595c02a8c0f7cc5f8fd0c931.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c1dc007e36c78ab98df4cd2383b4c5d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
8 . 已知椭圆
的中心为坐标原点,焦点
在
轴上,短轴长等于2,离心率为
,过焦
作
轴的垂线交椭圆
于
两点,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174142f3bba761585b6bc2653009b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
A.椭圆![]() ![]() | B.椭圆![]() ![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2023-01-15更新
|
680次组卷
|
3卷引用:广东省广州市2022-2023学年高二上学期期末数学试题
广东省广州市2022-2023学年高二上学期期末数学试题(已下线)模块四 专题5 重组综合练(广东)期末终极研习室(高二人教A版)广西桂林市荔浦县荔城中学2022-2023学年高二上学期期末考试数学试题
解题方法
9 . 已知椭圆
的左、右焦点分别为
,
,过下顶点A和右焦点
的直线与E交于另一点B,
与y轴交于点P,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a11f8c25acec3367de87a1ed21a1d001.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/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbad65b3d744b70da2480eee1cdb587.png)
A.![]() | B.![]() |
C.△![]() ![]() | D.![]() |
您最近一年使用:0次
21-22高二上·全国·期中
10 . 给定四条曲线中与直线
仅有一个交点的曲线是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7213c6c419ae349b6527cc38200507aa.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次