1 . 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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解题方法
2 . 如图,已知点
,
,以线段
为直径的圆内切于圆
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/82a9feac-defe-4cf8-a902-1a6948917de8.png?resizew=231)
(1)证明
为定值,并写出点
的轨迹
的方程;
(2)设点
是曲线
上的不同三点,且
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9bece414af7ecb2d796dc8a6f549e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27e62a44b8712ce4483b8710cda0dc1c.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/editorImg/2022/11/28/82a9feac-defe-4cf8-a902-1a6948917de8.png?resizew=231)
(1)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/689600ad091556762269f3395be39179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f2f3fc61c6be59729509b71da1b3d12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
您最近一年使用:0次
2021-12-23更新
|
466次组卷
|
5卷引用:江西省丰城市第九中学2023-2024学年高一下学期4月月考数学试题
江西省丰城市第九中学2023-2024学年高一下学期4月月考数学试题湖南省衡阳市2021-2022学年高二上学期12月质量监测数学试题(已下线)专题10.5—圆锥曲线—椭圆大题(面积最值问题)—2022届高三数学一轮复习精讲精练北京市对外经济贸易大学附属中学(北京市第九十四中学)2023届高三上学期数学期末复习试题广西桂林市国龙外国语学校2023届高三模拟考试数学(理)试题
3 . 已知平面内的定点
,
为坐标原点,
为平面内的动点,满足线段
的中点
在圆
上,点
在线段
上且
,当
运动时,点
形成的轨迹为曲线
.
(1)求曲线
的方程;
(2)若曲线
与
轴的左、右两个交点分别为
,过定点
的直线
与曲线
交于
两点,设直线
与
相交于点
,证明:点
在定直线上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce0b6dc739c658f64d53dbfafe26a174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79382ba44ba669b5d43fdd5427adf16c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a02f73c60dea26a43402b864aee856b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f44755c5fee4b90266eac73ad47a128.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3559164b258a74a3ed339317cd7a4a99.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/69df0d520f84f4c9dfdbe69074780757.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a36d874d5d8db342ad523c33d13b15e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77227d4d2b4a96829fd5ae1dd7cad688.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
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解题方法
4 . 已知两点
、
,动点
满足
,记
的轨迹为曲线
,直线
(
)交曲线
于
、
两点,点
在第一象限,
轴,垂足为
,连结
并延长交曲线
于点
.
(1)求曲线
的方程,并说明曲线
是什么曲线;
(2)若
,求△
的面积;
(3)证明:△
为直角三角形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a45349f54f6abc8d331556557255f024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/996dadd8544543637bd2d32a1f79579e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45ff7e0ef1f622120cc1b18e9d3e80ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b549d39d7e273f5ba461f1d508b20dc.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/c3016baf1a9ce777f16ea9ce469b2510.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2c80c26a794a844127aae7dee87c93b.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae95e96ce568efee50145f8d017353df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf3d566704b44ea4ef1f99c37bd46902.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8e69866076dcff686a05e9e91e61e68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ec215f280523d64b9dc3f4d03724cf2.png)
(3)证明:△
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ec215f280523d64b9dc3f4d03724cf2.png)
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5 . 如图,已知圆
的半径为
,
,
是圆
上的一个动点,
的中垂线
交
于点
,以直线
为
轴,
的中垂线为
轴建立平面直角坐标系.
![](https://img.xkw.com/dksih/QBM/2018/9/7/2027159827570688/2044060869042176/STEM/2b725d61a798412e88e4d93e61b5b6b7.png?resizew=211)
(Ⅰ)若点
的轨迹为曲线
,求曲线
的方程;
(Ⅱ)设点
为圆
上任意一点,过
作圆
的切线与曲线
交于
两点,证明:以
为直径的圆经过定点,并求出该定点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b10e8abf8690e4b129466ddb918bcc94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d016be795c8fbf498bbf44bc790bbc7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0739793f234f8e86adc6177801ae7295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac86e1c253297a377e14fb9a1689be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/643ef7d761de0e794fc39937dc72ac6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/643ef7d761de0e794fc39937dc72ac6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://img.xkw.com/dksih/QBM/2018/9/7/2027159827570688/2044060869042176/STEM/2b725d61a798412e88e4d93e61b5b6b7.png?resizew=211)
(Ⅰ)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(Ⅱ)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/288c4215b7962ac678f4c7802be20902.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
2018-09-30更新
|
859次组卷
|
2卷引用:【全国百强校】重庆市第八中学2017-2018学年高一下学期期末考试数学(理)试题2