名校
解题方法
1 . 已知椭圆
:
(
)的离心率为
,
是椭圆
的左,右焦点,点
是椭圆上任意一点且满足
.
(1)求椭圆方程;
(2)设
为椭圆右顶点,过点
的直线
与椭圆
交于
,
两点(异于
),直线
,
分别交直线
于
,
两点.求证:
,
两点的纵坐标之积为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](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/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.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/f595683f69d5d6b5ca76408b0ff6ff17.png)
(1)求椭圆方程;
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.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/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/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a09245fd7604997221b9a1a6e8fb752f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05a8c60eb762b0951c61153fc17ba91b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.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)
您最近一年使用:0次
2022-11-10更新
|
548次组卷
|
3卷引用:湖南省株洲市第二中学2021-2022学年高二上学期期中测试数学试卷
2 . 如图,已知圆
:
和点
,
是圆
上任意一点,线段
的垂直平分线和
相交于点
,记点
的轨迹为曲线
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/26/bf903984-9f0d-49cf-8a48-d2ff6ddd3d0e.png?resizew=156)
(1)求曲线
的方程;
(2)设点
是曲线
与
轴正半轴的交点,过点
的直线交曲线
于
、
两点,直线
,
的斜率分别是
,
,证明:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/685f9044d42bb9f570f71945fe2f72f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d70b4a9d6ed047b88c5b1070fbdc1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3171b3d11c6f4619e189677345357508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db8305c4ffbf876642440c3d28e91e9f.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://img.xkw.com/dksih/QBM/editorImg/2023/3/26/bf903984-9f0d-49cf-8a48-d2ff6ddd3d0e.png?resizew=156)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.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/afa482d7bcaa385bfc3548b42a4bfb60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b881044b5c73db6fcce110525741b02.png)
您最近一年使用:0次
名校
解题方法
3 . 已知椭圆
的左、右两个焦点分别是F1,F2,焦距为2,点M在椭圆上且满足MF2⊥F1F2,|MF1|=3|MF2|.
(1)求椭圆C的标准方程;
(2)点O为坐标原点,直线l与椭圆C交于A,B两点,且OA⊥OB,证明
为定值,并求出该定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
(1)求椭圆C的标准方程;
(2)点O为坐标原点,直线l与椭圆C交于A,B两点,且OA⊥OB,证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acb8956ebcde7cf0f1011a2fc1888e15.png)
您最近一年使用:0次
2022-12-09更新
|
590次组卷
|
6卷引用:河南省平顶山市2020-2021学年高二上学期期末数学(理)试题
河南省平顶山市2020-2021学年高二上学期期末数学(理)试题河南省平顶山市2020-2021学年高二上学期期末数学(文)试题河南省安阳市第一中学2020-2021学年高二上学期期末测试文科数学试题河南省信阳市商城县观庙高级中学2021-2022学年高二上学期12月月考数学(理)试题(已下线)第42讲 解析几何中的长度之和差积商平方问题-2022年新高考数学二轮专题突破精练山东省菏泽市2022-2023学年高二上学期期末数学试题
4 . 已知圆
的圆心为A,点
是圆A内一个定点,点C是圆A上任意一点,线段
的垂直平分线与半径
相交于点D.
(1)求动点D的轨迹E的方程;
(2)给定点
,设直线l不经过点P且与轨迹E相交于M,N两点,以线段
为直径的圆过点P.证明:直线l过定点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1c1bc11bacceac41491cef6938e456.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e316143ca26461f71fa70d5322aa58dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(1)求动点D的轨迹E的方程;
(2)给定点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1b6f209d1a805437046ca6ef79dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
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5 . 如图,已知点
,
,以线段
为直径的圆内切于圆
,点G的轨迹为F.
![](https://img.xkw.com/dksih/QBM/2021/12/19/2876152876630016/2880400184524800/STEM/9279ea51bad64c1680b9e48c63e8f907.png?resizew=195)
(1)求点G的轨迹E的方程;
(2)若轨迹E与x轴的左、右两个交点分别为M,N,过定点
的直线
与轨迹E交于R,S两点,设直线MR与NS交于点
,证明:点
在定直线上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21e9d55173f26afdf0e37462b556a605.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6d6f746c2355072d914591bf60c3801.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be19f9ec16fc625d1e4e87496c08921c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79382ba44ba669b5d43fdd5427adf16c.png)
![](https://img.xkw.com/dksih/QBM/2021/12/19/2876152876630016/2880400184524800/STEM/9279ea51bad64c1680b9e48c63e8f907.png?resizew=195)
(1)求点G的轨迹E的方程;
(2)若轨迹E与x轴的左、右两个交点分别为M,N,过定点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/574bd8f8732384b03a984e96cb3f27a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
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2021高三·全国·专题练习
6 . 已知①如图,长为
,宽为
的矩形
,以
、
为焦点的椭圆
恰好过
两点
![](https://img.xkw.com/dksih/QBM/2021/11/1/2841791034228736/2841910587449344/STEM/e4131407e3ce4934b85fd4854a53957c.png?resizew=338)
②设圆
的圆心为
,直线
过点
,且与
轴不重合,直线
交圆
于
两点,过点
作
的平行线交
于
,
(1)在①②两个条件中任选一个条件,求点
的轨迹方程;
(2)根据(1)所得点
的轨迹方程,直线
与点M轨迹交于
、
两点,且
.求证:
的面积为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/f326db309ab6bf16acfab03080650c73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/2021/11/1/2841791034228736/2841910587449344/STEM/e4131407e3ce4934b85fd4854a53957c.png?resizew=338)
②设圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71e8ffd8a6f46d6076861da6157e8274.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0c6eb7b48a27ad17219d724328b37cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c2bc5e50b8dfa02601c70822252854a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/defa5b53043ae802bb1af7d14374406d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(1)在①②两个条件中任选一个条件,求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)根据(1)所得点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a9186c64243690716dfeb6621fa7c35.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/f93f1438d9a45a9561fba2183ee1c1a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1f0417d8269f01d8e0bc1a8756e2ac.png)
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解题方法
7 . 平面内两个动圆的圆心分别为
,半径分别为
,其中
满足
,且
.
(1)求证:圆
与圆
相交,并求两圆的交点的轨迹E的方程;
(2)过点
的动直线l与曲线E相交于C,D两点.在平面直角坐标系
中,是否存在与点P不同的定点M,使得
恒成立?若存在,求出点M的坐标:若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbe70991c84e671ac2c0fa537e297c63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff8543261a8e351eb95cdfebb001a3b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff8543261a8e351eb95cdfebb001a3b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7960dd41fa13220e7e863193d2397cd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bb068fbc4190601f0bdd3395b3c69d9.png)
(1)求证:圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fe413b12ffabfb252121aa2eaa31017.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e21b699b7039f78c1e2deafe06eb89c.png)
您最近一年使用:0次
解题方法
8 . 已知过点
的曲线
的方程为
.
(1)求曲线
的标准方程:
(2)已知点
,
为直线
上任意一点,过
作
的垂线交曲线
于点
,
.证明:
平分线段
(其中
为坐标原点).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/711ca77eefc53ea6784a4fdfdcf4827c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/013f7960dd5c782520835afa52465ae6.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/055a2ef09e2ee0948cf67c58de58732d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
您最近一年使用:0次
9 . 在平面直角坐标系
中,已知点
,
,点M满足
,记点M的轨迹为曲线E.
(1)求曲线E的方程;
(2)设点A,B,C是曲线E上不同的三点,若坐标原点O是
的重心,求证:
的面积为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17618d8d22ebb3fd6835a7eb139b4f95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13683e2ecf2164a0adbfdb9923d210a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eed5b1b5a80e66f5a6cd08be019376c.png)
(1)求曲线E的方程;
(2)设点A,B,C是曲线E上不同的三点,若坐标原点O是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
您最近一年使用:0次
10 . 已知圆
,圆
,动圆P与M外切且与圆N内切,圆心P的轨迹为曲线C.
![](https://img.xkw.com/dksih/QBM/2021/12/25/2879897815367680/2886490455801856/STEM/097f89aef65242f2923fa221f73948ed.png?resizew=160)
(1)证明C是椭圆(除去一点),并求C的方程;
(2)①一组方向向量为
(k为常数)的平行直线与C均有两个公共点,证明这些直线被C截得的线段的中点在同一条直线上;
②上图是该椭圆旋转一定角度所得的图形,请写出一种尺规作图方案以确定其两个焦点的位置,并在答卷的图中画出来.(不必说明理由).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9806474abcd5486a3039662ad10b6a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b73dde6175fbff8beff2ef6e6a17f2bd.png)
![](https://img.xkw.com/dksih/QBM/2021/12/25/2879897815367680/2886490455801856/STEM/097f89aef65242f2923fa221f73948ed.png?resizew=160)
(1)证明C是椭圆(除去一点),并求C的方程;
(2)①一组方向向量为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4019b4cfb9a28de3b6c8a1e0587ce417.png)
②上图是该椭圆旋转一定角度所得的图形,请写出一种尺规作图方案以确定其两个焦点的位置,并在答卷的图中画出来.(不必说明理由).
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