1 . 已知椭圆
的焦距为6,圆
9与椭圆C有且仅有两个公共点
(1)求椭圆
的标准方程;
(2)已知动直线
过曲线
的左焦点F,且与椭圆
分别交于P,Q两点,试问x轴上是否存在定点R,使得
为定值?若存在,求出该定点坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ac87fe673ce030e468921070f2c540.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知动直线
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0165dc138f86a9d818eb9a098b4a0d67.png)
您最近一年使用:0次
名校
2 . 椭圆E的中心为坐标原点,坐标轴为对称轴,左、右顶点分别为
,
,点
在椭圆E上.
(1)求椭圆E的方程.
(2)过点
的直线l与椭圆E交于P,Q两点(异于点A,B),记直线AP与直线BQ交于点M,试问点M是否在一条定直线上?若是,求出该定直线方程;若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/913f78382630e50543e5f7192cae3ed3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c850811ba59a05e945a665196539a048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b133e7d154c61264c8cda7355e4a97b0.png)
(1)求椭圆E的方程.
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2a5e336b6bcba6354fd366c892dd06.png)
您最近一年使用:0次
2023-04-30更新
|
1135次组卷
|
10卷引用:内蒙古赤峰二中、赤峰第四中学、红旗中学2022-2023学年高三5月模拟考试理科数学试题
内蒙古赤峰二中、赤峰第四中学、红旗中学2022-2023学年高三5月模拟考试理科数学试题四川省资阳市2023届高考适应性考试数学(理科)试题四川省资阳市2023届高考适应性考试数学(文科)试题内蒙古赤峰新城红旗中学、赤峰第四中学、赤峰第二中学2022-2023学年高三下学期5月联考数学试题(理科)内蒙古赤峰新城红旗中学、赤峰第四中学、赤峰第二中学2022-2023学年高三下学期5月联考数学试题(文科)贵州省2023届高三下学期联合考试数学(理)试题河北省部分高中2023届高三下学期4月联考数学试题(已下线)第11讲 拓展五:圆锥曲线的方程(定值问题)-【帮课堂】2023-2024学年高二数学同步学与练(人教A版2019选择性必修第一册)河南省驻马店市驻马店高级中学2023-2024学年高二上学期期中数学试题(已下线)模块一 专题2 解析几何(2)
解题方法
3 . 已知椭圆
的一个焦点为
,且椭圆经过点
.
(1)求椭圆的标准方程;
(2)设A、B是x轴上的两个动点,且
,直线AM、BM分别交椭圆于点P、Q(均不同于M),证明:直线PQ的斜率为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63309dbc3612815f6dbdee23d9a10adc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b51085d7a7dd2bacb95ee6182c26ddc7.png)
(1)求椭圆的标准方程;
(2)设A、B是x轴上的两个动点,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a500b181d125b7c831d4d066ca4ad1b8.png)
您最近一年使用:0次
名校
解题方法
4 . 已知椭圆E:
的离心率为
,且过点
.
(1)求椭圆E的方程;
(2)若直线m过椭圆E的右焦点和上顶点,直线l过点
且与直线m平行.设直线l与椭圆E交于A,B两点,求AB的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26454b354884f8b9d63910d5dc72e1cc.png)
(1)求椭圆E的方程;
(2)若直线m过椭圆E的右焦点和上顶点,直线l过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85d23fc512ad69a2d5919ce690407704.png)
您最近一年使用:0次
2023-02-24更新
|
1516次组卷
|
7卷引用:内蒙古通辽市科尔沁左翼中旗实验高级中学2023届高三下学期第三次模拟考试数学(理)试题
内蒙古通辽市科尔沁左翼中旗实验高级中学2023届高三下学期第三次模拟考试数学(理)试题黑龙江省哈尔滨市第九中学校2022-2023学年高三下学期开学测试数学试卷四川省内江市第六中学2022-2023学年高二下学期第一次月考数学(文科)试题河南省焦作市博爱县第一中学2022-2023学年高二下学期4月月考数学试题(已下线)模块一 专题2 《解析几何》单元检测篇 A基础卷(已下线)第04讲 拓展一:直线与椭圆的位置关系-【练透核心考点】2023-2024学年高二数学上学期重点题型方法与技巧(人教A版2019选择性必修第一册)(已下线)题型22 5类圆锥曲线解题技巧
解题方法
5 . 已知椭圆
:
的左、右焦点分别是
,
,
、
分别是椭圆
的左顶点和上顶点,点
在椭圆
上,且
,
(
为坐标原点)
(1)求椭圆
的离心率
;
(2)椭圆
过点
,且经过点
的直线
与椭圆
交于
,
两点,直线
,
分别与直线
交于
,
两点,证明:
.
![](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/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/465ccac5268c45331bf659caa6955769.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acd4c328b4a86ca1f5c6dd0279de885a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
(2)椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bdf6364e167fc546ef210cd149d4cec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b54a21ab7b687bc6ca1ededb652497e5.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/9ce6c0e9de83f2e64ae33609fc08459d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5d8e33929752b1cb4dd36ee9b98b45d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092d7bedf860bbbc171c5df40b395ad8.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/aa788ebf5b2eb8a35bf662b540007665.png)
您最近一年使用:0次
2022-05-29更新
|
361次组卷
|
2卷引用:内蒙古赤峰市2022届高三下学期5月模拟考试数学(文科)试题
6 . 已知椭圆
右焦点为
,椭圆
的左焦点为F,点A为椭圆E上一动点(不在x轴上),点B为线段
与椭圆C的公共点(且B靠近点A).
![](https://img.xkw.com/dksih/QBM/2022/5/20/2983390734049280/2984074456473600/STEM/0e650887-b237-404c-b36f-ccc2b498f41e.png?resizew=179)
(1)若点F恰为椭圆C的左顶点,求椭圆E的方程;
(2)令
面积的最大值为
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/533b93dd6eb6b474481247736699c76c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b8efde48d56eba64635b136138ba517.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://img.xkw.com/dksih/QBM/2022/5/20/2983390734049280/2984074456473600/STEM/0e650887-b237-404c-b36f-ccc2b498f41e.png?resizew=179)
(1)若点F恰为椭圆C的左顶点,求椭圆E的方程;
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5eb2485f90dbfd0dfd6e7d179a856f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a359ca21213ec934fd7a109c22814680.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a359ca21213ec934fd7a109c22814680.png)
您最近一年使用:0次
2022-05-21更新
|
599次组卷
|
2卷引用:内蒙古呼伦贝尔市海拉尔第二中学2022届高三下学期最后一模数学(理)试题
解题方法
7 . 已知椭圆
:
(
)的短轴长为
,
是椭圆
上一点.
(1)求椭圆
的方程;
(2)过点
(
为常数,且
)的直线
与椭圆
交于不同的两点
,
,与
轴相交于点
,已知
,
,证明:
.
![](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/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a818c7b7f571f7173feb9b73424d5ffe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b62769b7177ef4bc952dc1dd51d6b510.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be17a78f969ea0ce201d42bb0485dc43.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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f5652e94063be35668450ec2f44347a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfb6303671277c3091f0e787c59cdbdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d8a7d2305c0776ba8b54bbb7e60bbcb.png)
您最近一年使用:0次
解题方法
8 . 已知椭圆
的离心率为
,且经过点
,椭圆C的右顶点到抛物线
的准线的距离为4.
(1)求椭圆C和抛物线E的方程;
(2)设与两坐标轴都不垂直的直线l与抛物线E相交于A,B两点,与椭圆C相交于M,N两点,O为坐标原点,若
,则在x轴上是否存在点H,使得x轴平分
?若存在,求出点H的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb41f5860fa7d1c94cc57fabf44e7985.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81e380f331149fa273bc00856663effc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c42d88e496a17562d25195301e0ac2.png)
(1)求椭圆C和抛物线E的方程;
(2)设与两坐标轴都不垂直的直线l与抛物线E相交于A,B两点,与椭圆C相交于M,N两点,O为坐标原点,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ef54adb0b01f212dd43fcea5913ce72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/905a43e5b7da602ecfa1dacc7c8d5b87.png)
您最近一年使用:0次
2022-05-11更新
|
1837次组卷
|
6卷引用:内蒙古赤峰市八校2023届高三第三次统一模拟考试联考理科数学试题
内蒙古赤峰市八校2023届高三第三次统一模拟考试联考理科数学试题四川省成都市2022届高三第三次诊断考试文科数学试题四川省成都市2022届高三第三次诊断考试理科数学试题(已下线)9.5 三定问题及最值(精练)(已下线)广东省江门市棠下中学2022-2023学年高三上学期数学试题变式题17-22(已下线)第28讲 圆锥曲线存在性问题-【同步题型讲义】2022-2023学年高二数学同步教学题型讲义(人教A版2019选择性必修第一册)
名校
解题方法
9 . 已知椭圆
:
(
)的左右焦点分别为
,
,
为椭圆上一点,连接
交
轴正半轴于点
,且
.
(1)求椭圆
的标准方程;
(2)过点
作斜率互为相反数的两条直线,分别交椭圆于点
,
(不与
重合),证明:直线
的斜率为定值.
![](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/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/480f004c98a0df86a35a48bc973f0472.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac86e1c253297a377e14fb9a1689be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ad82f6baf9f7abc8209a0d979ab9316.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
2022-05-08更新
|
411次组卷
|
2卷引用:内蒙古赤峰二中2022届高三下学期5月模拟数学(文)试题
解题方法
10 . 已知椭圆
:
的离心率为
,
为坐标原点,点
在椭圆
上.
(1)求椭圆
的方程;
(2)已知过点
的直线
与椭圆C交于M,N两点,点
,求证:
.
![](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/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9f4e5db206458eb1507a485ba8f6579.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78e0b4cce429003557b051ea0fa2f7de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62af66af364130bfa1690702db302c75.png)
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