名校
解题方法
1 . 在平面直角坐标系
中,已知椭圆
:
的焦距为2,过点
.
(1)求椭圆C的标准方程;
(2)若直线
交椭圆C于点P,Q,直线AP,AQ分别交y轴于点M,N,且
,求证:直线
过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](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/7e90064d012356de1877aa697cd6d6ac.png)
(1)求椭圆C的标准方程;
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e69e7c594a05e772cff0f1c10b7412b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2022-12-06更新
|
661次组卷
|
4卷引用:江苏省苏州市2023-2024学年高三上学期11月期中摸底数学试题
名校
解题方法
2 . 已知椭圆
的两个焦点为
,点
在
上,直线
交
于
两点,直线
的斜率之和为0.
(1)求椭圆
的方程;
(2)求直线
的斜率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c4930856e680e806ad4ae7899be73f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/315a24a74c99dfa18e6d8b1b5220724b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5671fb25040a712a49e8c8148d67d300.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2022-09-15更新
|
572次组卷
|
4卷引用:江苏省苏州市2023-2024学年高二上学期11月期中摸底数学试题
3 . 已知椭圆
且经过
,
,
,
中的三点,抛物线
,椭圆
的右焦点是抛物线
的焦点.
(1)求曲线
,
的方程;
(2)点P是椭圆
的点,且过点P可以作抛物线
的两条切线,切点为A,B,求三角形
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd486b8796b3454eab219c28ed131683.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d82f03d55136baa4fa3730c7322d117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9abf8ecb241c7445cdaadbdd962e9e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb085c452c6fb59cd2973c0182db9235.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cea8120733aa8bb7d905361659c53f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0107aa23cf707446f947fa236421c1f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)点P是椭圆
![](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/e1622ef87d58b6f90f24942918479a14.png)
您最近一年使用:0次
2022-05-26更新
|
2077次组卷
|
4卷引用:江苏省苏州市八校2022届高三下学期高考适应性检测(三模)数学试题
江苏省苏州市八校2022届高三下学期高考适应性检测(三模)数学试题江苏省苏州市2023-2024年高三上学期11月期中模拟数学试题(提优)(已下线)专题3 阿基米德三角形 微点2 阿基米德三角形综合训练(已下线)重难点15七种圆锥曲线的应用解题方法-1
名校
解题方法
4 . 在平面直角坐标系xOy中,椭圆C:
的离心率为
,且过点
.
![](https://img.xkw.com/dksih/QBM/2022/1/9/2877155808108544/2918350127890432/STEM/b1c190d4-f700-4e37-b88b-2cccfc697b38.png?resizew=203)
(1)求椭圆C的方程;
(2)设A为椭圆C的左顶点,过点
作与x轴不重合的直线l交椭圆C于P,Q两点,连接AP,AQ分别交直线
于M,N两点,若直线MR,NR的斜率分别为
,
,试问
是否为定值?若是,求出该定值;若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3654254401fc902c3cb4912969f21f88.png)
![](https://img.xkw.com/dksih/QBM/2022/1/9/2877155808108544/2918350127890432/STEM/b1c190d4-f700-4e37-b88b-2cccfc697b38.png?resizew=203)
(1)求椭圆C的方程;
(2)设A为椭圆C的左顶点,过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e75be8ddb3a5921ffbcef4d5a1eaaa4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56cf3dde63baa5caf878c7ff8d31f648.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/b4757181824e15e0f21e5bdd55448783.png)
您最近一年使用:0次
2022-02-17更新
|
556次组卷
|
3卷引用:江苏省G4(苏州中学、扬州中学、盐城中学、常州中学)2021-2022学年高三上学期12月联考数学试题
名校
5 . 已知椭圆
的右端点A的坐标为
,且点A与椭圆短轴的两个端点构成正三角形.
(1)求椭圆E的方程;
(2)设直线
与椭圆E交于两点P、Q,且线段
的中垂线过
,求实数k的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a80fd8b6f1f56304198b3fe89accd3f.png)
(1)求椭圆E的方程;
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94a8d6991873e79b298984a95b8954b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c6b1ca85ab21ca36d4e4893411119a5.png)
您最近一年使用:0次
解题方法
6 . 著名数学家庞加莱说“我感受到了数学的美、数字和形状的协调,以及几何的优雅”.为了让学生体会数学之美,某校数学组开设了特色校本课程,老师利用两类圆锥曲线构造了一个近似“
”形状的曲线,它由抛物线
的一部分和椭圆
的一部分构成(如图1).已知在平面直角坐标系
中,
:
和
:
交于
,
两点,
是公共焦点,
,
(如图2).
![](https://img.xkw.com/dksih/QBM/2021/1/19/2639515719237632/2641606945112064/STEM/19ec1f55-0d09-4fdc-97d8-f0c0d781aede.png)
![](https://img.xkw.com/dksih/QBM/2021/1/19/2639515719237632/2641606945112064/STEM/e97c2ef8-807f-47b5-9008-4f10ee66d5ab.png)
(1)求
和
的方程;
(2)过点
作直线
与“
”形状曲线依次交于
,
,
,
四点,若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91edc7e2d4811f5ea6c01284cf00393a.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/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c2f156b05838deaae6a35acad242af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fb223b8777ab973970491bf0dcc6806.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/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ed0c2d5f6e9add5b72c4b82a9a29c70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6f94fb620637681af65d30e8037c998.png)
![](https://img.xkw.com/dksih/QBM/2021/1/19/2639515719237632/2641606945112064/STEM/19ec1f55-0d09-4fdc-97d8-f0c0d781aede.png)
![](https://img.xkw.com/dksih/QBM/2021/1/19/2639515719237632/2641606945112064/STEM/e97c2ef8-807f-47b5-9008-4f10ee66d5ab.png)
(1)求
![](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/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91edc7e2d4811f5ea6c01284cf00393a.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cf1b30a840a82eb933efd395a359737.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2021-01-22更新
|
543次组卷
|
4卷引用:江苏省苏州市2020-2021学年高二上学期1月学业质量阳光指标调研数学试题
江苏省苏州市2020-2021学年高二上学期1月学业质量阳光指标调研数学试题江苏省南通市海安市立发中学2022-2023学年高二上学期期末数学试题(已下线)模块三 专题12 抛物线 A基础卷(已下线)模块三 专题15 抛物线 A基础卷
7 . 在①与抛物线
有相同的一个焦点,过点
,②到定点
与到定直线
的距离之比是
,③离心率为
,短轴一个端点到右焦点的距离为
,这三个条件中任选一个,补充在下面问题中,并回答下面问题.
已知
,若_______
(1)求椭圆
的方程:
(2)设斜率为
的直线
经过左焦点与椭圆
交于
、
两点,求弦
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/839b8de04116aaaed4f4cca2e107cd36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee70f80d9b2a8a39a2e70e281d48c91e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58f42d6c12d8b5309e81979bf1f045dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dff1e33966ff01e4a394b42a3c65a400.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174142f3bba761585b6bc2653009b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174142f3bba761585b6bc2653009b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设斜率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
19-20高二上·江苏南通·期末
名校
解题方法
8 . 已知椭圆E:
(
)过点
,且它的右焦点为
.
(1)求椭圆E的方程;
(2)过A且倾斜角互补的两直线分别交椭圆E于点B、C(不同于点A),且
,求直线AB的方程.
![](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/c179fe7eff7abfdd092b63c9c1b82d0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5973fe67568caf975b1cef998a363227.png)
(1)求椭圆E的方程;
(2)过A且倾斜角互补的两直线分别交椭圆E于点B、C(不同于点A),且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd1fe7660ee42b8d3a9c076b700ae59a.png)
您最近一年使用:0次
2020-02-21更新
|
415次组卷
|
3卷引用:江苏省苏州中学2020-2021学年高二上学期期末数学试题
江苏省苏州中学2020-2021学年高二上学期期末数学试题(已下线)江苏省南通市如皋市2019-2020学年高二上学期期末数学试题江苏省南通市通州区金沙中学2021-2022学年高二上学期第四次调研考试数学试题
名校
9 . 如图,椭圆
的上、下顶点分别为
,右焦点为
点
在椭圆
上,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f18831bff7d88f96985fa250c81ad10.png)
![](https://img.xkw.com/dksih/QBM/2018/3/10/1899020506587136/1904061887741952/STEM/09f7606640194c089ba3387ee02fd6d8.png?resizew=198)
(1)若点
坐标为
求椭圆
的方程;
(2)延长
交椭圆
于点
,已知椭圆的离心率为
,若直线
的斜率是直线
的斜率的
倍,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f5c664aa79a88c035d7ece15220a4c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f18831bff7d88f96985fa250c81ad10.png)
![](https://img.xkw.com/dksih/QBM/2018/3/10/1899020506587136/1904061887741952/STEM/09f7606640194c089ba3387ee02fd6d8.png?resizew=198)
(1)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de41dece4d9c9dd300ffaaa9713c11b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)延长
![](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/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
10 . 如图,已知椭圆
的右顶点为A(2,0),点P(2e,
)在椭圆上(e为椭圆的离心率).
![](https://img.xkw.com/dksih/QBM/2018/1/28/1870241403265024/1873235063455744/STEM/15abe2ff7b7e4847a874277b45d10fd2.png?resizew=278)
(1)求椭圆的方程;
(2)若点B,C(C在第一象限)都在椭圆上,满足
,且
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0dce10bf671cc2ebc67aa7fd568a9a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://img.xkw.com/dksih/QBM/2018/1/28/1870241403265024/1873235063455744/STEM/15abe2ff7b7e4847a874277b45d10fd2.png?resizew=278)
(1)求椭圆的方程;
(2)若点B,C(C在第一象限)都在椭圆上,满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/780ed0e409fb6c6c1f98c8921125c760.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ee58ec1c590dd12a68860ff1a113e60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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