2024高三·全国·专题练习
1 . 如图,在平面直角坐标系
中,M,N分别是椭圆
的顶点,过坐标原点的直线交椭圆于P,A两点,其中P在第一象限,过P作x轴的垂线,垂足为C,连接AC,并延长交椭圆于点B,设直线PA的斜率为k.对任意
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d80b861ba40387cb2bcd04945f5a371a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0d68648b10fce54dfc19c5ee60086d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83640592853a53872d7af69c0cffc1bb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/11/a588c886-fd20-45b5-beb5-508af729f3e7.png?resizew=156)
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2023高三·全国·专题练习
2 . 若实数
,
,
两两不等,且
,
,证明
,并由本结论说出
的一条几何性质.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c25fc6a69d6d0ccfb8d839b9b4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a081b7a43e94312031f2bd1357defb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72e44017e74a651ae0e50ebf20f4191a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23b9893e5d5836dc60ec5f25c723fd02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5894f0258b4b0acb81412de25a8478de.png)
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3 . 已知点
,P、Q为椭圆
上异于点B的任意两点,且
.若点B在线段
上的射影为M,求点M的轨迹方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81b54b9cf95418bc3dce6e4c698b9907.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82e7d9f4f7ace849e09e9adcb786b7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85e4cb1a0ea1b684e80129f2415ef2e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
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4 . 已知直线
与椭圆
:
交于
、
两点,直线
不经过原点
.
(1)求
面积的最大值;
(2)设
为线段
的中点,延长
交椭圆
于点
,若四边形
为平行四边形,求四边形
的面积.
![](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/48da128547c4cf9745e8e4b99988a3db.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
(2)设
![](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/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14e902eb263971b466d0fcd91c56b453.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14e902eb263971b466d0fcd91c56b453.png)
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5 . 已知椭圆
与x轴交于点A、B,过椭圆上动点M(M不与A、B重合)作椭圆的切线l,过点A、B分别作x轴的垂线,与切线l分别交于点C、D.直线CB、AD交于点Q,Q关于M的对称点为P.求点P的轨迹方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5703981d2d22d4ebdd2f9369369d1b4.png)
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2020-05-11更新
|
621次组卷
|
2卷引用:苏教版(2019) 选修第一册 一蹴而就 模块整合
2020高三·全国·专题练习
名校
6 . 易知椭圆
,其短轴为4,离心率为e1.双曲线
的渐近线为
,离心率为e2,且
.
(1)求椭圆E的方程;
(2)设椭圆E的右焦点为F,过点G(4,0)斜率不为0的直线交椭圆E于M、N两点设直线FM和FN的斜率为
,试判断
是否为定值,若是定值,求出该定值;若不是定值,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a200ca2c4af794f4d1c6a5443830b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90adb1f0e193b178f7e387b21a174d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d3051f43ac48c0a730a791b8a93ad37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7bcaf273474069ffe4d6e0db22e2cbf.png)
(1)求椭圆E的方程;
(2)设椭圆E的右焦点为F,过点G(4,0)斜率不为0的直线交椭圆E于M、N两点设直线FM和FN的斜率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90963760acac7bfad3ae03088c6c80b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b69e3f7ddd51215d00661c09cd900d60.png)
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2020-05-11更新
|
1077次组卷
|
6卷引用:秒杀题型11 圆锥曲线中的定值与定点-2020年高考数学试题调研之秒杀圆锥曲线压轴题
(已下线)秒杀题型11 圆锥曲线中的定值与定点-2020年高考数学试题调研之秒杀圆锥曲线压轴题2019年全国高中数学联赛甘肃省预赛宁夏自治区银川市银川九中、石嘴山三中、平罗中学三校2020届高三下学期联考数学(文)试题西藏日喀则市2021届高三学业水平考试数学(文)试题甘肃省高台县第一中学2021-2022学年高三上学期期中考试数学(理科)试题吉林省吉林市第一中学2022-2023学年高二上学期期末数学试题
7 . 设椭圆C:
的左、右焦点分别为
,其焦距为2c.点
在椭圆的内部,点M是椭圆C上的动点,且
恒成立,则椭圆C的离心率的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afc7ec5a637a8d7395c549b53e555c9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebec2da2ba87399649d172e879504fb6.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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8 . 设a是实数,关于z的方程(z2-2z+5)(z2+2az+1)=0有4个互不相等的根,它们在复平面上对应的4个点共圆,则实数a的取值范围是________ .
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9 . 椭圆
的右焦点为
,右准线为
,
为24个依逆时针顺序排列在椭圆上的点.其中
是椭圆的右顶点,且
,则这24个点到
的距离的倒数和为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6205da5e1d2730ee0b3de8bca3e29f5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1754edd82b7dc027b32908b439f889db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a50d165680aac9ca2173e5781153174a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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2010高三·辽宁·竞赛
10 . 已知
、
分别为椭圆
的左、右焦点,
为椭圆上一点.
中
的外角平分线为
,点
关于
的对称点为
,
交
于点
.
(1)当点
在椭圆上运动时,求点
的轨迹方程;
(2)设点
的轨迹为曲线
,直线
:
与曲线
交于点
、
,
的面积为
,求
取得最大值时
的值.
![](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/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98c043d5e847c15f00af2c4633949680.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94fe48bf7af022ecbbe13833fdcc2c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c6f8a0db9d6a46cfcc28c666fdab897.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(1)当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13dea1bd3d0dd84b8b6f6ff634c5600c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea28925ba9f19d4b5bbb39d609b67f56.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/9fd2981bf2261343f905ec1b5355a3c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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