名校
解题方法
1 . 已知曲线
,曲线
,下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8afba75dac7dd121de3a5d76393be3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c629a4f2909d5a49f1e92b50771a6be6.png)
A.![]() ![]() |
B.若![]() ![]() ![]() |
C.直线![]() ![]() ![]() |
D.若![]() ![]() ![]() |
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名校
解题方法
2 . 已知椭圆
的左、右焦点分别为
,
,左、右顶点分别为
,
,点P,Q在椭圆C上,P,Q异于
,
.
(1)若直线
与直线
交于点
,直线
与直线
交于点
,求
的值;
(2)若P,Q,
三点共线,且
的内切圆面积为
,求直线PQ的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/533b93dd6eb6b474481247736699c76c.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/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/800c5e266b4ad8462a46970f0a232d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c778e409fe63e187a09444bc888e8f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3def09b63ef44997ab7a0baac8b17eb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f46b053f98b1d05a2043e94eeaefea87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c778e409fe63e187a09444bc888e8f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35e4ab9e0bcee9cadeea9c15866476bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26690f078768c54d833988769b8bc425.png)
(2)若P,Q,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6380c54a58ed53ebe8977402b42c960.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e04fa0550f88e1b05816246edd4c771.png)
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|
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3 . 如图,已知椭圆
与椭圆
有相同的离心率,点
在椭圆
上.过点
的两条不重合直线
与椭圆
相交于
两点,与椭圆
相交于
和
四点.
的标准方程;
(2)求证:
;
(3)若
,设直线
的倾斜角分别为
,求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40de76911377ce524655488973914c76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d5915ae756cee0e30fed15da2ae16d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9b77128eab3b2c8d42f0031c9d87cc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/522230546d4b802094e86ceb48c2ba38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/522230546d4b802094e86ceb48c2ba38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b035d7e2a68f56d04ad9b79fab7b3b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4f150ab98bde511e0f65d9bafab031.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/522230546d4b802094e86ceb48c2ba38.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc851d438b2124f8ca9bb48a637e8705.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca98887356d093d283abf16635db7249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8dc4c63a548b91061528aa11058de75.png)
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2024-02-29更新
|
1203次组卷
|
5卷引用:河南省信阳高级中学2024届高三下学期高考考前测试数学试题
名校
解题方法
4 . 已知
,我们称双曲线
与椭圆
互为“伴随曲线”,点
为双曲线
和椭圆
的下顶点.
(1)若
为椭圆
的上顶点,直线
与
交于
,
两点,证明:直线
,
的交点在双曲线
上;
(2)过椭圆
的一个焦点且与长轴垂直的弦长为
,双曲线
的一条渐近线方程为
,若
为双曲线
的上焦点,直线
经过
且与双曲线
上支交于
,
两点,记
的面积为
,
(
为坐标原点),
的面积为
.
(i)求双曲线
的方程;
(ii)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cd83f319fc5f78f83d93751ef4edcbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5be71d1d7b9323ad3887bc4eed036279.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b56542c956949ecfadb0e0589f8cf1c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f09757d013574cf058d5bb944fdf034a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f09757d013574cf058d5bb944fdf034a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32e2dcfff2900a1e6f2f343a1e4f22a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f09757d013574cf058d5bb944fdf034a.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/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f09757d013574cf058d5bb944fdf034a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18483c9c195ecd922772527fa85c0fcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45cc81cfaccc00aa4b7139de5a35a102.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/d4f02028a3847c4807c2d3cf0ea7efb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80863901d65e6149e741129307540a84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98013a5042685a1db94249e70c62c09a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc60c4bdbf44f69d8d9028bd33b358ab.png)
(i)求双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(ii)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1667a8835809b2bd5e5d3724e2edcaaa.png)
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2024-02-08更新
|
1001次组卷
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3卷引用:河南省信阳市新县高级中学2024届高三考前第五次适应性考试数学试题
名校
解题方法
5 . 如图,已知椭圆
的左、右顶点分别为
,
,点P是C上的一点(不同于左、右顶点),且直线
的斜率与直线
的斜率之积为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/25/88679ee8-6764-4663-ae49-ce46393f0154.png?resizew=180)
(1)求C的方程;
(2)过点
作直线
的垂线交C于另外一点Q,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/069ffc1e3936d254303d588e1a70a3aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/800c5e266b4ad8462a46970f0a232d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f46b053f98b1d05a2043e94eeaefea87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/602baac86c2b1668ecdfadc8a5948885.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/25/88679ee8-6764-4663-ae49-ce46393f0154.png?resizew=180)
(1)求C的方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/800c5e266b4ad8462a46970f0a232d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/949d9955bd317f095c263c16946de073.png)
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解题方法
6 . 已知椭圆
的左、右顶点分别为
,焦距为2,离心率为
.
(1)求椭圆
的方程.
(2)已知点
的坐标为
,是否存在直线
,使得对于
上任意一点
(
不在椭圆
上),若直线
交椭圆
于另一点
,直线
交椭圆
于另一点
,恒有
三点共线?若存在,求出
的方程;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00442d96d695db2c58bf1fb7165fca94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ed24bfcc37b79fe9ca61ed8fdf26ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c32048890f0368d935a4cf5ed204ac40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/800c5e266b4ad8462a46970f0a232d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f46b053f98b1d05a2043e94eeaefea87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0eee53153cf9b55eb8a9b443db53387.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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2022-12-08更新
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3卷引用:河南省商丘市部分学校2022-2023学年高中毕业班阶段性测试(三)文科数学试题
7 . 已知椭圆
的左顶点为A,直线
与椭圆C交于M,N两点,若坐标原点O到直线AM的距离为
,则b=( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93bf968d2bfe5cbeee12148611366f77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b202cc33959bdad8be0105989160983.png)
A.![]() | B.![]() | C.8 | D.12 |
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4卷引用:河南省部分学校2022届高三下学期5月考前最后一卷文科数学试题
解题方法
8 . 如图,
,
分别是椭圆
的左顶点和上顶点,圆
经过点
,
为椭圆
上一点,过
且与
垂直的直线交圆
于两点
,
.若点
在椭圆
上,其中
为椭圆
的离心率.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/1f178d74-9241-4c64-a238-25ff468d1498.png?resizew=184)
(1)求椭圆
的标准方程;
(2)求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38729d36302cda29e4878e9a094b65f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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/194f88af3aa5cf711689d771c173a176.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/1f178d74-9241-4c64-a238-25ff468d1498.png?resizew=184)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/177678001b2ccde1db8f57fa5e017002.png)
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2022-01-25更新
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6卷引用:河南省济源市、平顶山市、许昌市2021-2022学年高三上学期第一次质量检测理科数学试题
河南省济源市、平顶山市、许昌市2021-2022学年高三上学期第一次质量检测理科数学试题河南省济源市、平顶山市、许昌市2021-2022学年高三上学期第一次质量检测文科数学试题河南省济源平顶山许昌2021-2022学年高三上学期第一次质量检测数学(文)试题(已下线)习题 2-4(已下线)专题07 解析几何(数学思想与方法)-备战2022年高考数学二轮复习重难考点专项突破训练(全国通用)(已下线)第29节 椭圆
9 . 椭圆
经过点
,离心率是
.若斜率为k的直线
与椭圆交于不同的两点E、G.
(1)求椭圆的标准方程;
(2)设
,直线PE与椭圆的另一点交点为M,直线PG与椭圆的另一个交点为N.若M、N和点
共线,求k.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c38d0c57d580c7518fce5df5204a0149.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174142f3bba761585b6bc2653009b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(1)求椭圆的标准方程;
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/328aaba77106396d4ca644c8b7a352e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f5d801dcb3bb15dea4be45b2cfb9c28.png)
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2021-05-20更新
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2卷引用:河南省郑州市2021届高三三模文科数学试题
名校
10 . 已知椭圆
:
的左右焦点分别为
,
,过
的直线
与椭圆交于
,
两点,
为椭圆的下顶点,
为等腰三角形,当
轴时,
的面积为
.
(1)求椭圆
的标准方程;
(2)若直线
不与坐标轴垂直,线段
的中垂线
与
轴交于点
,若直线
的斜率为
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78e8df70d56fe97837cdfb0cf5de3fb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/165a501b2e6a3acc46212e59a166c053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb9518b14bc81ba2ae824a660877c18a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d8ad9e94d07405a6be585f81a0d623b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2021-01-21更新
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8卷引用:河南省焦作市2021届高三第三次大联考理科数学试题
河南省焦作市2021届高三第三次大联考理科数学试题河南省焦作市2021届高三第三次大联考文科数学试题江西省吉安市2021届高三大联考数学(文)(3-2)试题江西省吉安市2021届高三大联考数学(理)(3-2)试题四川省成都市第七中学2024届高三上学期理科数学综合测试题(已下线)专题24 椭圆(解答题)-2021年高考数学(文)二轮复习热点题型精选精练(已下线)专题26 椭圆(解答题)-2021年高考数学(理)二轮复习热点题型精选精练(已下线)专题25 椭圆(解答题)-2021年高考数学二轮复习热点题型精选精练(新高考地区专用)