11-12高二上·辽宁沈阳·阶段练习
名校
解题方法
1 . 已知
的顶点A、B在椭圆
,点
在直线
上,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0cc699a65e140dd4be6195f25c1e85d.png)
(1)当AB边通过坐标原点O时,求
的面积;
(2)当
,且斜边AC的长最大时,求AB所在直线的方程.
![](https://img.xkw.com/dksih/QBM/2011/12/20/1570626493579264/1570626498854912/STEM/dacd69f67b4f45e38a04b7c327ca33f3.png?resizew=45)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/553f7bba497f1f582899939c5b8e8206.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f61de965b9d38982e5a75af2737e57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0cc699a65e140dd4be6195f25c1e85d.png)
(1)当AB边通过坐标原点O时,求
![](https://img.xkw.com/dksih/QBM/2011/12/20/1570626493579264/1570626498854912/STEM/dacd69f67b4f45e38a04b7c327ca33f3.png?resizew=45)
(2)当
![](https://img.xkw.com/dksih/QBM/2011/12/20/1570626493579264/1570626498854912/STEM/5d46f01d470c44d7ba1ae96cd55d675f.png?resizew=87)
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2 . 在圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f94c7b530a908f1792fbd1e9e7c505a.png)
上任取一点
,过点
作
轴的垂线段
,
为垂足.当点
在圆上运动时,线段
的中点
形成轨迹
.
(1)求轨迹
的方程;
(2)若直线
与曲线
交于
两点,
为曲线
上一动点,求
面积的最大值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f94c7b530a908f1792fbd1e9e7c505a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f5d967ad135991b6075ee45df55643.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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求轨迹
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.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/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b17f20c25bb16153b5f2d25062ed7a7.png)
您最近一年使用:0次
2016-12-01更新
|
1721次组卷
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8卷引用:江西省南昌市八一中学、洪都中学等六校2019-2020学年高二上学期期末联考数学(理)试题
江西省南昌市八一中学、洪都中学等六校2019-2020学年高二上学期期末联考数学(理)试题江西省南昌市八一中学、洪都中学等六校2019-2020学年高二上学期期末联考数学(文)试题(已下线)2011-2012学年浙江省余姚中学高二上学期期中理科数学试卷四川省泸县第一中学2019-2020学年高二下学期第二次月考数学(文)试题四川省泸县第一中学2019-2020学年高二下学期第二次月考数学(理)试题四川省宜宾市叙州区第一中学校2019-2020学年高二下学期第四学月考试数学(理)试题(已下线)4.2.3 直线与圆的方程的应用-2020-2021学年高一数学课时同步练(人教A版必修2)(已下线)3.1.2 椭圆的简单几何性质(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)
2011·江西南昌·三模
3 . 在平面直角坐标系
中,点
,动点
满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12d4371d8fbd65ecd0ea5b4d60aebed6.png)
(1)求点
的轨迹
的方程;
(2)若直线
与轨迹
相交于
两点,直线
与轨迹
相交于
两点,顺次连接![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e88f79da28a2878b27e3742dc8c92fd8.png)
得到的四边形
是菱形,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e5f5d603318014d1b38bdd7fe0bdf9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12d4371d8fbd65ecd0ea5b4d60aebed6.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79f5e89ba9720550b350ac1711dcd88c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a83b09a1354eb807e38528466ab1bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e88f79da28a2878b27e3742dc8c92fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/389bc3f29c058067e06e0d0d2be399da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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2011·江西吉安·一模
4 . 设椭圆
的焦点分别为
,直线
交
轴于点A,且
.
(1)试求椭圆的方程;
(2)过
、
分别作互相垂直的两直线与椭圆分别交于D、E、M、N四点(如图所示),若四边形DMEN的面积为
,求DE的直线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f49644cd9fa4688cc3a74a234952530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d05a0a5d5f90e591a9fa2916ba1d67b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff60811681be1e63d9571b9adbd9c3e0.png)
(1)试求椭圆的方程;
(2)过
![](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/88819f8e8257e060979442e5b56bdd52.png)
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2011·江西九江·一模
5 . 已知椭圆
的左、右两个焦点为
,离心率为
,又抛物线
与椭圆
有公共焦点
.
(1)求椭圆和抛物线的方程;
(2)设直线
经过椭圆的左焦点
且与抛物线交于不同两点P、Q且满足
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99cd361ce118bca96a731b241a9c587d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ef87b7a37d75af7c0d67a1607465599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6d6f746c2355072d914591bf60c3801.png)
(1)求椭圆和抛物线的方程;
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4bc79ec389c2b529d0f5756136d917c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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10-11高三·江西九江·阶段练习
6 . 已知椭圆的左右焦点分别为
、
,离心率为
.
(1)求椭圆的方程;
(2)设直线
经过
与椭圆交于M、N两点,
斜率为
,若
为钝角,求
的取值范围.
![](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/8d5989c84e320b504511f23eeb6e7357.png)
(1)求椭圆的方程;
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fab820a43016677dcc071517b4735f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2010·北京海淀·二模
名校
解题方法
7 . 如图所示,已知椭圆
和抛物线
有公共焦点
,
的中心和
的顶点都在坐标原点,过点
的直线l与抛物线
分别相交于
两点(A在下,B在上)
![](https://img.xkw.com/dksih/QBM/2016/3/14/1572536537178112/1572536543420416/STEM/22a23612-0255-462a-aa11-9ac58a566eb1.png?resizew=156)
(1)写出抛物线
的标准方程;
(2)若
,求直线l的方程;
(3)若坐标原点O关于直线l的对称点P在抛物线
上,直线l与椭圆
有公共点,求椭圆
的长轴长的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://img.xkw.com/dksih/QBM/2016/3/14/1572536537178112/1572536543420416/STEM/318c32e8fd514bb7bb89b2e9e0f5c35e.png?resizew=45)
![](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/363598fd39f2269952dc6ddd1201346c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ae6f48b9a53c0155a692509cf31f7e6.png)
![](https://img.xkw.com/dksih/QBM/2016/3/14/1572536537178112/1572536543420416/STEM/22a23612-0255-462a-aa11-9ac58a566eb1.png?resizew=156)
(1)写出抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6904af5cf5cfdc42e76cca82b26e2c3c.png)
(3)若坐标原点O关于直线l的对称点P在抛物线
![](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/b1241216f3c1cb5e73043dd1037f556d.png)
您最近一年使用:0次
2016-12-04更新
|
984次组卷
|
8卷引用:2015-2016学年江西省南城一中高二上学期期中考试文科数学试卷
2015-2016学年江西省南城一中高二上学期期中考试文科数学试卷江西省南昌市第三中学2024届高三上学期第二次月考(10月)数学试题(已下线)2010年北京市海淀区高三第二次模拟考试数学(理)(已下线)2010年高考嘉兴一中适应性考试数学试题(理科)(已下线)[名校联盟]浙江省杭州市萧山九中2011届高三六、八、九三校5月联考文科数学(已下线)2012届浙江省台州市台州中学高三上学期第三次统练文科数学上海市2018-2019学年高三上学期12月仿真数学试题北京名校2023届高三二轮复习 专题五 解析几何 第2讲 圆锥曲线
10-11高二上·湖南·期末
名校
解题方法
8 . 已知抛物线
:
,焦点为
,其准线与
轴交于点
.椭圆
:分别以
、
为左、右焦点,其离心率
,且抛物线
和椭圆
的一个交点记为
.
(1)当
时,求椭圆
的标准方程;
(2)在(1)的条件下,若直线
经过椭圆
的右焦点
,且与抛物线
相交于
,
两点,若弦长
等于
的周长,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/340a6bf0c32ee7f426ad677e06c0be23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.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/d5c7316976a221c051a2c14df80b1347.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/ac047e91852b91af639feec23a9598b2.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194b8ab194c7d299d5c3e0f09ec18384.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)在(1)的条件下,若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.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/2401bc9c26cc3b0b8384c7139bd58fff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b42fc33bcfc63ec2f4940ccd3f862400.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2016-11-30更新
|
912次组卷
|
4卷引用:江西省赣州市赣县第三中学2021-2022学年高二4月月考数学(理)试题
江西省赣州市赣县第三中学2021-2022学年高二4月月考数学(理)试题(已下线)2011届湖南省嘉积中学高二上学期质量检测数学理卷(已下线)2011-2012学年度吉林省吉林市高二上学期期末理科数学试卷【市级联考】安徽省定远重点中学2018-2019学年高二上学期第三次月考数学(文)试题
9 . 设
,
分别为椭圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d72a07a4e5acfc140a3cea1f26b951.png)
的左右焦点,过
的直线
与椭圆
相交于
,
两点,直线
的倾斜角为
,
到直线
的距离为
.
(Ⅰ)求椭圆
的焦距;
(Ⅱ)如果
,求椭圆
的方程.
![](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/d7d72a07a4e5acfc140a3cea1f26b951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f82eb4ba631d0f50d848aa6e576b379.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](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/2d5bca00fa20e6e80480b9d06d2e52ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
(Ⅰ)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(Ⅱ)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706b8c6c4867aa1538ba4c3e8e6ce5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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2016-11-30更新
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312次组卷
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15卷引用:2010年江西省高安中学高二上学期期中考试理科数学卷
(已下线)2010年江西省高安中学高二上学期期中考试理科数学卷2010年普通高等学校招生全国统一考试(辽宁卷)文科数学2010年普通高等学校招生全国统一考试(辽宁卷)文科数学全解全析(已下线)2010—2011学年辽宁省营口市普通高中高二上学期期末教学质量检测理科数学(已下线)2011-2012学年山东省微山一中高二上学期期中理科数学试卷(已下线)2011-2012学年陕西省长安一中高二上学期期末考试文科数学【全国百强校】重庆市第一中学2018-2019学年高二上学期期中考试数学(理)试题安徽省蚌埠二中2019-2020学年高二下学期开学检测理科数学试题黑龙江省哈尔滨市第六中学2020-2021学年高二10月月考数学(文)试题河南省焦作市博爱英才学校2020-2021学年高二第一学期11月月考文科数学试题上海市交通大学附属中学2020-2021学年高二上学期期中数学试题沪教版(2020) 一轮复习 堂堂清 第七单元 7.6 椭圆河南省洛阳复兴学校2021-2022学年高二上学期12月月考数学试题沪教版(2020) 选修第一册 高效课堂 第二章 每周一练(2)(已下线)第3章 圆锥曲线与方程 综合测试-【暑假自学课】2023年新高二数学暑假精品课(苏教版2019必修第一册)
2010·河北·一模
名校
解题方法
10 . 已知动圆C过点A(-2,0),且与圆
相内切.
(1)求动圆C的圆心的轨迹方程;
(2)设直线
: y=kx+m(其中k,m∈Z)与(1)所求轨迹交于不同两点B,D,与双曲线
交于不同两点E,F,问是否存在直线
,使得向量
,若存在,指出这样的直线有多少条?若不存在,请说明理由
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f11edf9bcd468914d9777312bdbc70f.png)
(1)求动圆C的圆心的轨迹方程;
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/676429a1a7b874900b232afe16849827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62f9ff26aca2bbefc0b78a323b514b53.png)
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