名校
解题方法
1 . 设椭圆E1的长半轴长为a1、短半轴长为b1,椭圆E2的长半轴长为a2、短半轴长为b2,若
,则我们称椭圆E1与椭圆E2是相似椭圆.已知椭圆E:
,其左顶点为A、右顶点为B.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/5dac46bc-e949-45a4-b896-78217eb24e98.png?resizew=153)
(1)设椭圆E与椭圆F:
是“相似椭圆”,求常数s的值;
(2)设椭圆G:
,过A作斜率为k1的直线l1与椭圆G只有一个公共点,过椭圆E的上顶点为D作斜率为k2的直线l2与椭圆G只有一个公共点,求|
的值;
(3)已知椭圆E与椭圆H:
是相似椭圆.椭圆H上异于A、B的任意一点C(x0,y1),且椭圆E上的点M(x0,y2)(
)求证:AM⊥BC.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd731967bb86ddf18e9e473daa96041a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82e7d9f4f7ace849e09e9adcb786b7f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/5dac46bc-e949-45a4-b896-78217eb24e98.png?resizew=153)
(1)设椭圆E与椭圆F:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76b1f480c4cc86e47a97b712ce8473e7.png)
(2)设椭圆G:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e8af798961237df56e74e191b88dc65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/249f2c7aeab56b0265bbfb3b57011453.png)
(3)已知椭圆E与椭圆H:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f89b0bea245d8e71276f43503bae040.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddef7fc1094028667143de29690d9a07.png)
您最近一年使用:0次
名校
解题方法
2 . 已知椭圆
的右顶点为
,离心率为
.过点
与x轴不重合的直线l交椭圆E于不同的两点B,C,直线
,
分别交直线
于点M,N.
(1)求椭圆E的方程;
(2)设O为原点.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d295a4cc3a58f9f38ee98337313c81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54695f96e6f365b0cc79b3ceaf5d26cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39cc033406da2cdd342308972c6701f1.png)
(1)求椭圆E的方程;
(2)设O为原点.求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5897b35e64d5c814ac47b917d45e88.png)
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2022-05-05更新
|
2651次组卷
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8卷引用:北京市东城区2022届高三二模数学试题
名校
解题方法
3 . 已知椭圆
的右焦点为
,上顶点为
,直线
的斜率为
,且原点
到直线
的距离为
.
(1)求椭圆
的标准方程;
(2)设椭圆
的左、右顶点分别为
,过点
的动直线
交椭圆
于
,
两点,直线
相交于点
,证明:点
在定直线上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a477603f3f88c3b48352b6130f9ad5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e08e91d2fa9519a5f48d488176700499.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a477603f3f88c3b48352b6130f9ad5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00442d96d695db2c58bf1fb7165fca94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5adb619ca92790d5d3fa7652210ff8eb.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b1e7fbf2fefb21c712a5d8214e0033d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
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2022-08-27更新
|
568次组卷
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3卷引用:山东省百师联盟2022届高三下学期5月模拟数学试题
山东省百师联盟2022届高三下学期5月模拟数学试题河南省信阳高级中学2022-2023学年高三上学期开学考试数学(理)试题(已下线)第27讲 圆锥曲线中定直线问题-【同步题型讲义】2022-2023学年高二数学同步教学题型讲义(人教A版2019选择性必修第一册)
4 . 已知椭圆
的离心率为
,
、
为左右焦点.直线
交椭圆C于A、B两点,且
.
(1)求椭圆C的方程;
(2)若
,
斜率之积为
,求证:
的面积为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dee14db57f0c762aad845cf5b4a243c0.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/2fc5bd66dd6d5e09ff0893a938aed56e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/325eb51e6a43c5665661a2073b98653e.png)
(1)求椭圆C的方程;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af6ddf31b7d9225a4239883af72d153b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
您最近一年使用:0次
名校
解题方法
5 . 已知圆
的焦点为
,长轴长与短轴长的比值为
.
(1)求M的方程;
(2)过点F的直线l与M交于A,B两点,BC⊥x轴于点C,AD⊥x轴于点D,直线BD交直线
于点E,求证:点C,A,E三点共线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6011a66f8aeef500d2c745da770dc1bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be92f0e0012a7696c78e3e00513edefd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
(1)求M的方程;
(2)过点F的直线l与M交于A,B两点,BC⊥x轴于点C,AD⊥x轴于点D,直线BD交直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
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2022-05-08更新
|
459次组卷
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2卷引用:山东省五莲县、诸城市、安丘市、兰山区四县区2022届高三过程性测试数学试题
6 . 已知椭圆
:
的一个顶点恰好是抛物线
:
的焦点,离心率为
.
(1)求椭圆
的方程;
(2)设
,
,
,
是椭圆
上一点,且不与顶点重合,若直线
与直线
交于点
,直线
与直线
交于点
.证明
是等腰三角形.
![](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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42102c1c07562853219ca5918803a27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee5a1d7cc1501e44c13390c54ba39f80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed0e135ad05dddd5ec57678af73433d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48c09615735d331befd07664aa47cb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07c2cc110e46ae4b3432814810e28bcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9399c9a2a31b0e3165aea2d6ccc4f7c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/668438e15423368cd744445e824d18a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8dcc9f79fe5f07f25447aa442ee14ad.png)
您最近一年使用:0次
7 . 已知椭圆
上有两点
及
,直线
与椭圆交于A、B两点,与线段
交于点C(异于P、Q).
(1)当
且
时,求直线
的方程;
(2)当
时,求四边形
面积的取值范围;
(3)记直线
、
、
、
的斜率依次为
、
、
、
,当
且线段
的中点M在直线
上时,计算
的值,并证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09c03c6b8d7418edf20f474389971352.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3178e2296170fb2ba5ed2c016a1edc80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/626cec0aec0243e6bbdcf264396a700e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f24e616b5a35ff372c78c1472f156ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5095a28bb1b91bf6bed9e2cfbd76bb18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44b5cc821ddbdf58518685593d614290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8e69866076dcff686a05e9e91e61e68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7571e2f20e482a852a5d4639480f6a5.png)
(3)记直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bf25e032b5599ac49383de06e776365.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf702adb116c1e46569eb7050d029f49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbf434334b09cc0fdd4e86e84e6ceb00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3307e11f7e6896e32aa510bbed949ac6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03b011f69dfc5262a3d82f64676739b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f1d8d5cea065075fe50706abe3ae802.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b881044b5c73db6fcce110525741b02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b98e5f03e2e6d8e82c652520447dee93.png)
您最近一年使用:0次
2022-02-23更新
|
272次组卷
|
2卷引用:上海市实验学校2022届高三下学期开学考试数学试题
名校
解题方法
8 . 已知椭圆C:
,点
为椭圆的右焦点,过点F且斜率不为0的直线
交椭圆于M,N两点,当
与x轴垂直时,
.
(1)求椭圆C的标准方程.
(2)
,
分别为椭圆的左、右顶点,直线
,
分别与直线
:
交于P,Q两点,证明:四边形
为菱形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092fd1b1d33979818300cd2e3699bff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cbdd945cdadb7dca0d281d791374573.png)
(1)求椭圆C的标准方程.
(2)
![](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/9399c9a2a31b0e3165aea2d6ccc4f7c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b06b75fb4e379ff3b99e68f40136cad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0b4379dc6fb670eab758530a8553dfd.png)
您最近一年使用:0次
2022-05-01更新
|
1454次组卷
|
3卷引用:广东省2022届高三二模数学试题
广东省2022届高三二模数学试题(已下线)考点20 椭圆-2-(核心考点讲与练)-2023年高考数学一轮复习核心考点讲与练(新高考专用)广东省东莞市东华高级中学2022-2023学年高二下学期期中考试数学试卷
名校
解题方法
9 . 已知圆锥曲线
上的点
的坐标
满足
.
(1)说明
是什么图形,并写出其标准方程;
(2)若斜率为1的直线
与
交于
轴右侧不同的两点
,
,点
为
.
①求直线
在
轴上的截距的取值范围;
②求证:
的平分线总垂直于
轴.
![](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/82a79a33a83a7ba57a34b5093d1d1d02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd05490af0096bb615260e752b67cfb6.png)
(1)说明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)若斜率为1的直线
![](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/d053b14c8588eee2acbbe44fc37a6886.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/fad20e2bc6576fc461419f8f138d26e7.png)
①求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
②求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb686e4f5e3938575bc547e849d5513f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
2021-09-30更新
|
1394次组卷
|
3卷引用:湖南省湘潭市2021-2022学年高三上学期一模数学试题
名校
10 . 已知椭圆
(
)的焦点是F1,F2,且| F1F2|=2,离心率为
.
(1)求椭圆的方程;
(2)过椭圆右焦点F2的直线
交椭圆于
,
(
)两点,点Q是直线l上异于F2的一点,且满足
.求证:点Q的横坐标是定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
(1)求椭圆的方程;
(2)过椭圆右焦点F2的直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2210f152080d9a68a97c805f5c1cde96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9a796109c08a2e29a05ae8b52a5b41.png)
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2021-08-31更新
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2卷引用:甘肃省张掖市某重点校2022-2023学年高三上学期第四次检测数学(理)试题