名校
解题方法
1 . 如图,已知圆
和双曲线
,记
与
轴正半轴、
轴负半轴的公共点分别为
、
,又记
与
在第一、第四象限的公共点分别为
、
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/c029ad3b-6a41-4d37-bd80-4021b95c0c23.png?resizew=163)
(1)若
,且
恰为
的左焦点,求
的两条渐近线的方程;
(2)若
,且
,求实数
的值;
(3)若
恰为
的左焦点,求证:在
轴上不存在这样的点
,使得
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d93fa33953259b41ebfee72c9bf8d88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d9f470b99c86d5c18ba3e3230056e37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f82a5421934348a612982ca099723b63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/f82a5421934348a612982ca099723b63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4455cb5ef8fa02f8740a01ea658ed7fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/c029ad3b-6a41-4d37-bd80-4021b95c0c23.png?resizew=163)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8176754726d2194c890e80df1a1f1c3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4455cb5ef8fa02f8740a01ea658ed7fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4455cb5ef8fa02f8740a01ea658ed7fb.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8176754726d2194c890e80df1a1f1c3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f730f3c637144b21d295d0037cd73a7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4455cb5ef8fa02f8740a01ea658ed7fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eff086bba43377f6da713d43bf052f5.png)
您最近一年使用:0次
2020-03-15更新
|
416次组卷
|
4卷引用:重难点06 解析几何-2021年高考数学【热点·重点·难点】专练(上海专用)
(已下线)重难点06 解析几何-2021年高考数学【热点·重点·难点】专练(上海专用)上海市延安中学2018-2019学年度高三5月月考数学试卷2019届上海市延安中学高三三模数学试题(已下线)3.2 双曲线(难点)(课堂培优)-2021-2022学年高二数学课后培优练(苏教版2019选择性必修第一册)
名校
2 . 如图,已知椭圆
:
,左顶点为
,经过点
,过点
作斜率为
的直线
交椭圆
于点
,交
轴于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/9/1428be6b-43fa-4a4c-b6ad-d9f2f14b268f.png?resizew=152)
(1)求椭圆
的方程;
(2)已知
为
的中点,
,证明:对于任意的
都有
恒成立;
(3)若过点
作直线
的平行线交椭圆
于点
,求
的最小值.
![](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/993769b494e12c21dff0ee7c53a4a49f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2be3ad3dd6803d92df6ff8a80cd35095.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bcb166b53a49e393871bcb14a528792.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/9/1428be6b-43fa-4a4c-b6ad-d9f2f14b268f.png?resizew=152)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76da015bb01f4925ff9d43becd2e56d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bcb166b53a49e393871bcb14a528792.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae0297c11050f2e39f82bb2cdf810d4f.png)
(3)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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/9a63f73eee78e687b3a3760f967052b7.png)
您最近一年使用:0次
2019-11-15更新
|
654次组卷
|
4卷引用:上海市青浦高级中学2021届高三三模数学试题
名校
3 . 设有二元关系
,已知曲线
.
(1)若
时,正方形
的四个顶点均在曲线
上,求正方形
的面积;
(2)设曲线
与
轴的交点是
,抛物线
与
轴的交点是
,直线
与曲线
交于
,直线
与曲线
交于
,求证直线
过定点,并求该定点的坐标;
(3)设曲线
与
轴的交点是
,
,可知动点
在某确定的曲线
上运动,曲线
上与上述曲线
在
时共有4个交点,其坐标分别是
、
、
、
,集合
的所有非空子集设为
,将
中的所有元素相加(若
只有一个元素,则和是其自身)得到255个数
,求所有正整数
的值,使得
是一个与变数
及变数
均无关的常数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/489a58805c72dcadc4abd8c4588165d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/912af898055c5dabdf767a3cf7b2d8f2.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)设曲线
![](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/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8636fedba520535bd22f80a257cce15b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67c015d99f2677951bdcd0447240ef93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff4a63d14654c66cc71bf26293d698ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
(3)设曲线
![](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/6fa5463bb430fa36159237b0238363c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccfbe53ce5fd04beb18203214b662573.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3fd0f89e7a74e6a1269ea3f60383f51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7351e10351e2216540c194735cb24039.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b0db9725b166638962758593bff482a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9d10abb19c5f496ed322c2f4bcd5cfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a25362614aa93807f5bc0adec1f585b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e27aa0c05e4f20fd9b06ec3aec7c9a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fac2a1b17f01e120dc4d1b35db181269.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc00379c7af113543302417b685c7d6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc00379c7af113543302417b685c7d6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ad9f4dff95110a7ca7386523010b422.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92784299c483916224b45d36c5e82363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07b49387212190fca877a8f280aa4c37.png)
您最近一年使用:0次
2020-01-02更新
|
490次组卷
|
3卷引用:上海市金山中学2022届高三上学期9月月考数学试题
19-20高三上·上海浦东新·阶段练习
名校
4 . 已知椭圆
的方程为
,圆
与
轴相切于点
,与
轴正半轴相交于
、
两点,且
,如图1.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/3/9358ea55-8ed6-4ce7-85b7-9f62744eb625.png?resizew=438)
(1)求圆
的方程;
(2)如图1,过点
的直线
与椭圆
相交于
、
两点,求证:射线
平分
;
(3)如图2所示,点
、
是椭圆
的两个顶点,且第三象限的动点
在椭圆
上,若直线
与
轴交于点
,直线
与
轴交于点
,试问:四边形
的面积是否为定值?若是,请求出这个定值,若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c763113a1fc48e8acc83787b8cd24eec.png)
![](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/e2a63f7b42555f7f81bcb18b9247bf9a.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/368fc197b61e01fe6a4a168bb7b375cd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/3/9358ea55-8ed6-4ce7-85b7-9f62744eb625.png?resizew=438)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)如图1,过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff7023ec0f513c7d0ef86859a5ede54.png)
(3)如图2所示,点
![](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/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a51e59d5ee66ef9fd625ffbdbbe6254a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b104090ea2ac34be58a76a4e0e95cb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2dce07491c3e53410375b50733fb7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7688363f5ffff23a6193c7a8eee501c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d6b1188b4520397649b0d3ccac7e248.png)
您最近一年使用:0次
2019-12-11更新
|
1387次组卷
|
4卷引用:上海市大同中学2021届高三下学期3月月考数学试题
上海市大同中学2021届高三下学期3月月考数学试题(已下线)上海市华东师范大学第二附属中学2019-2020学年高三上学期9月月考数学试题安徽省六安市金安区第一中学2019-2020学年高二上学期期末数学(理)试题(已下线)专题18 直线和圆的方程(讲义)-2
名校
5 . 已知
、
为椭圆
(
)和双曲线
的公共顶点,
、
分为双曲线和椭圆上不同于
、
的动点,且满足
,设直线
、
、
、
的斜率分别为
、
、
、
.
(1)求证:点
、
、
三点共线;
(2)求
的值;
(3)若
、
分别为椭圆和双曲线的右焦点,且
,求
的值.
![](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/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f3fa0b40fb0d9b8c62e37316ab3b04.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9af775a44fdbbbb6972683a495a94049.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.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)
(1)求证:点
![](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/1dde8112e8eb968fd042418dd632759e.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f80f88bf259eab62e63d64281cf2635.png)
(3)若
![](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/967fdfefb8824635d3fa29daa5396c2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b4f89cd6b110c525e724e1a872dc18c.png)
您最近一年使用:0次
2019-12-08更新
|
853次组卷
|
5卷引用:上海市2021届高三高考数学押题密卷试题07
名校
6 . 求证:一次函数
的图象经过坐标原点的充要条件是
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e114459637a3db306e91b5e9ee9aae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143b917df0520097be222accbddf9394.png)
您最近一年使用:0次
2020-02-02更新
|
912次组卷
|
7卷引用:第5讲常用逻辑概念-【A+课堂】2021-2022学年高一数学同步精讲精练(沪教版2020必修第一册)
(已下线)第5讲常用逻辑概念-【A+课堂】2021-2022学年高一数学同步精讲精练(沪教版2020必修第一册)1.4.2 充要条件(学案)-2021-2022学年高一数学教材配套学案+练习(人教A版2019必修第一册)广东省云浮市黄冈中学新兴学校2021-2022学年高一上学期9月月考数学试题广东省华中师范大学海丰附属学校2021-2022学年高一上学期9月月考数学试题人教A版(2019) 必修第一册 过关斩将 第一章 1.4. 充分条件与必要条件 1.4.1 充分条件与必要条件 1.4.2 充要条件(已下线)专题1.8 充分条件与必要条件-重难点题型检测(已下线)第二章 常用逻辑用语(压轴题专练)-速记·巧练(苏教版2019必修第一册)
名校
解题方法
7 . 已知两动圆
和
(
),把它们的公共点的轨迹记为曲线
,若曲线
与
轴的正半轴的交点为
,且曲线
上的相异两点
满足:
.
(1)求曲线
的轨迹方程;
(2)证明直线
恒经过一定点,并求此定点的坐标;
(3)求
面积
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd06e4324534a5bf676dd16502d51628.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ca514aee77eb5f64a124add2362022f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d71b28f2d6b07c5323a10c5195a49e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7625d648c8bd1c8d84cc044827e59638.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)证明直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a5e0a51c9e14fb246b0ba0b231c1e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
您最近一年使用:0次
2019-08-17更新
|
2995次组卷
|
10卷引用:重难点06 解析几何-2021年高考数学【热点·重点·难点】专练(上海专用)
(已下线)重难点06 解析几何-2021年高考数学【热点·重点·难点】专练(上海专用)2015届上海市闵行区高三下学期质量调研考试(二模)理科数学试卷上海市育才中学2018-2019学年高三下学期三模数学试卷上海市上海师范大学附属中学2018-2019学年高三下学期质量检测数学试题上海市向明中学2017-2018学年高三上学期期中数学试题(已下线)数学-6月大数据精选模拟卷05(上海卷)(满分冲刺篇)上海市大同中学2017届高三上学期期中数学试题2016届河南省洛阳市一中高三下学期第二次模拟理科数学试卷广东省深圳市宝安中学(集团)2019-2020学年高三下学期2月月考数学(理)试题广东省梅州市2020届高三下学期总复习质检数学(理)试题
名校
解题方法
8 . 定义:由椭圆的两个焦点和短轴的一个顶点组成的三角形称为该椭圆的“特征三角形”;如果两个椭圆的“特征三角形”是相似的,则称这两个椭圆是“相似椭圆”,并将三角形的相似比称为椭圆的相似比,已知椭圆
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/22/18b158b9-7002-45d2-bb99-ca1f095c30c7.png?resizew=230)
(1)若椭圆
,判断
与
相似?如果相似,求出
与
的相似比;如果不相似,请说明理由;
(2)写出与椭圆
相似且焦点在
轴上,短半轴长为
的椭圆
的标准方程;若在椭圆
上存在两点
、
关于直线
对称,求实数
的取值范围;
(3)如图:直线
与两个“相似椭圆”
和
分别交于点
和点
,试在椭圆
和椭圆
上分别作出点
和点
(非椭圆顶点),使
和
组成以
为相似比的两个相似三角形,写出具体作法.(不必证明)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f036026cd92e9ad059c3f22a7658638.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/22/18b158b9-7002-45d2-bb99-ca1f095c30c7.png?resizew=230)
(1)若椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b57107d9f1e8d80a2e83df93e2891e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)写出与椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ca18c89c398b435447b1970f6f00a43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ca18c89c398b435447b1970f6f00a43.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/5ab466aedd6e176088d8dee7bc3e3aaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(3)如图:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f326db309ab6bf16acfab03080650c73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f9265fd631c3099bcb84bbb8e12fc61.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f8425c2d3807198fd586a2b0007179c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5df7626240940eb340420a605e95aeee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2020-02-29更新
|
283次组卷
|
4卷引用:专题5.8 期末考前选做30题(解答题压轴版)-2020-2021学年高二数学下学期期末专项复习(沪教版)
(已下线)专题5.8 期末考前选做30题(解答题压轴版)-2020-2021学年高二数学下学期期末专项复习(沪教版)2014-2015学年上海市金山中学高二下学期期末考试数学试卷上海市东昌中学2019-2020学年高二上学期期末数学试题上海市上海交通大学附属中学2015-2016学年高二上学期期末数学试题
名校
解题方法
9 . 已知椭圆
两焦点
,并经过点
.
(1)求椭圆
的标准方程;
(2)设
为椭圆
上关于
轴对称的不同两点,
为
轴上两点,且
,证明:直线
的交点
仍在椭圆
上;
(3)你能否将(2)推广到一般椭圆中?写出你的结论即可.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f49644cd9fa4688cc3a74a234952530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc8ae763010ec2babfa828d264ace7fc.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0200bb2c3cc080a5d1ecf36f80aea0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b46051fea24610b42da314ec58bbb80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/142eefc20e0a5ab44d56d38ca442ae16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(3)你能否将(2)推广到一般椭圆中?写出你的结论即可.
您最近一年使用:0次
10 . 已知双曲线
的两焦点为
,
为动点,若
.
(1)求动点
的轨迹
方程;
(2)若
,设直线
过点
,且与轨迹
交于
两点,直线
与
交于
点.试问:当直线
在变化时,点
是否恒在一条定直线上?若是,请写出这条定直线方程,并证明你的结论;若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ea74737939c0f94c91229a7098f36ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f595683f69d5d6b5ca76408b0ff6ff17.png)
(1)求动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b5dbfa1543e19099e728ca895a3146.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49f31a1284206d3a2fdea63f2a6983b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c45a57242b7e27503239c428b773f6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ec18c028746b73be7503ff6ff458a8c.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/cf231f8f86fb922df4ca0c87f044cec3.png)
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