名校
解题方法
1 . 已知椭圆
的左、右焦点分别为
,
,点
在椭圆上,且有
.
(1)求椭圆C的标准方程;
(2)过
的直线
与椭圆交于A、B两点,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.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/bfc2210a7e09298897f6585ad08a70d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85f5864c589f96fae832f7de03539d3b.png)
(1)求椭圆C的标准方程;
(2)过
![](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/866b81a8384cce4f24867baca2e6820c.png)
您最近一年使用:0次
2021-01-30更新
|
1320次组卷
|
4卷引用:辽宁省沈阳市2018届高三教学质量监测(一)数学文试题
2021高三·全国·专题练习
名校
解题方法
2 . 已知椭圆C∶
(
)的左,右焦点分别为
,
,离心率为
,M为C上一点,
面积的最大值为
.
(1)求C的标准方程;
(2)已知点
,O为坐标原点,不与x轴垂直且不过
的直线l与C交于A,B两点,且
.试问∶
的面积是否存在最大值?若存在,求出该最大值;若不存在,说明理由.
![](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/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b42fc33bcfc63ec2f4940ccd3f862400.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adbd3e8cf8325999cde03adf845d3dd0.png)
(1)求C的标准方程;
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a120cd30d1dd8cfac85539939c5febc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45523947fefe4647873cf021e58d0ef4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ff8a5886e42095da57422c8777c10d.png)
您最近一年使用:0次
2021-01-27更新
|
1040次组卷
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6卷引用:大题专练训练19:圆锥曲线(椭圆:最值范围问题1)-2021届高三数学二轮复习
(已下线)大题专练训练19:圆锥曲线(椭圆:最值范围问题1)-2021届高三数学二轮复习云南省昆明市2021届高三上学期”三诊一模“摸底诊断测试数学(理)试题重庆市第八中学校2020-2021学年高二下学期第一次月考数学试题(已下线)专题31 圆锥曲线存在性问题的五种类型大题100题-【千题百练】2022年新高考数学高频考点+题型专项千题百练(新高考适用)云南省昆明市第十四中学2023-2024学年高二下学期4月月考数学试卷云南省玉溪市红塔区云南省玉溪第一中学2023-2024学年高二下学期6月月考数学试题
名校
3 . 若椭圆
和椭圆
满足
,则这两个椭圆相似,
称为其相似比.
(1)求经过点
,且与椭圆
相似的椭圆方程;
(2)设过原点的一条射线
分别与(1)中两个椭圆交于
两点(其中点
在线段
上),求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/441fb4299c9f4f1f7c683958f4882d7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c074753132281fca5df48cb3ca29385a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1b2b6b6ea7598f0891ba82f044ee1a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(1)求经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5251d48153b94aa05422dee2d89691a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d80b861ba40387cb2bcd04945f5a371a.png)
(2)设过原点的一条射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f662756a3c4cbbc8868adbfed6b1f44f.png)
您最近一年使用:0次
20-21高三·上海浦东新·阶段练习
4 . 已知
,如图,曲线
由曲线
和曲线
组成,其中点
,
为曲线
所在圆锥曲线的焦点,点
,
为曲线
所在圆锥曲线的焦点.
![](https://img.xkw.com/dksih/QBM/2021/1/16/2637229551067136/2639495255392256/STEM/f414e3ca-8fb7-494b-b1a0-500e2d6e6c5f.png?resizew=332)
(1)若
,
,求曲线
的方程;
(2)如图,作直线
平行于曲线
的渐近线,交曲线
于点
,
,求弦
的中点
的轨迹方程;
(3)对于(1)中的曲线
,若直线
过点
交曲线
于点
,
,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9398fbc4f06358c41cdd7e93b1407577.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9f05b99371106ae288f01405213be3b.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/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1282962a17a48a18edf733204054d67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/287adcb739a4890d108dd974358345fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://img.xkw.com/dksih/QBM/2021/1/16/2637229551067136/2639495255392256/STEM/f414e3ca-8fb7-494b-b1a0-500e2d6e6c5f.png?resizew=332)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16fd15503ee692f8286b0312f7c6f0cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/804b93b0751acdaec26c8ff4fe9d4148.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
(2)如图,作直线
![](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/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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(3)对于(1)中的曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/287adcb739a4890d108dd974358345fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.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/dbdbb45d7359537458736c9ea5bf9e1d.png)
您最近一年使用:0次
2021-01-19更新
|
746次组卷
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3卷引用:上海市浦东新区华东师范大学第二附属中学2021届高三4月高考数学模拟试题
名校
5 . 若椭圆上存在点
,使得点
到椭圆的两个焦点的距离之比为
,则称该椭圆为“倍径椭圆”,则下列椭圆中为“倍径椭圆”的是( )
![](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/bbe103f073845122c66f22dcb14b711f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-01-17更新
|
787次组卷
|
4卷引用:江西省抚州市黎川县第一中学2021届高三上学期联考数学(理)试题
解题方法
6 . 已知椭圆
的离心率
,
,
,
,
,
的面积为1.
(1)求椭圆C的方程;
(2)点D为x轴上一点,过D作x轴的垂线交椭圆C于不同的两点M,N,过D作AM的垂线交BN于点E.求证:
与
的面积之比为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75f236182642bce92ffb3668b325ea5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7933ce51482d8add3c4142ddeed2b11f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11efa868e44e27ffa8e5049f2202af45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19b62194097ac66a5093c57fca2f5b4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bf7264407abc7b2e3b2ef4baa13da06.png)
(1)求椭圆C的方程;
(2)点D为x轴上一点,过D作x轴的垂线交椭圆C于不同的两点M,N,过D作AM的垂线交BN于点E.求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15514bc735fe4b744672edefe00009c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9830cb9f3785e2b262b99bf831ced636.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/259150cf534c96faef62a1d5e8b5d238.png)
您最近一年使用:0次
名校
7 . 在平面直角坐标系
中,已知椭圆
:
的离心率为
,且经过点
.
(1)求椭圆
的方程;
(2)设
为椭圆
的右焦点,直线
与椭圆
相切于点
(点
在第一象限),过原点
作直线
的平行线与直线
相交于点
,问:线段
的长是否为定值?若是,求出定值;若不是,说明理由.
![](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/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad492d5033448d419df9c9b75a71894e.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](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/4fb26d84907c923278ac4626a9d58947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
您最近一年使用:0次
2020-11-30更新
|
1608次组卷
|
9卷引用:江苏省南通市海安县2020-2021学年高三上学期期中调研考试数学试题
江苏省南通市海安县2020-2021学年高三上学期期中调研考试数学试题江苏省南京市金陵中学、南通市海安中学2020-2021学年高三上学期期中数学试题江苏省南京市第一中学2020-2021学年高三上学期期中数学试题(已下线)期末模拟试卷(A基础卷)-2020-2021学年高二数学课时同步练(人教B版2019选择性必修第二册)(已下线)专题11 圆锥曲线-2021年高考冲刺之二轮专题精讲精析江苏省南通市海安高级中学2020-2021学年高三上学期期中数学试题(已下线)数学-学科网2021年高三1月大联考考后强化卷(山东卷)(已下线)专题29 圆锥曲线求定值七种类型大题100题-【千题百练】2022年新高考数学高频考点+题型专项千题百练(新高考适用)天津市耀华中学2024届高三第一次校模拟考试数学试卷
8 . 已知椭圆C中心在原点,焦点在x轴上,离心率为
,且一个焦点和短轴的两个端点构成面积为1的等腰直角三角形.
(1)求椭圆的标准方程;
(2)过椭圆C右焦点F作直线交椭圆C于点M,N,又直线
交直线
于点T,若
,求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
(1)求椭圆的标准方程;
(2)过椭圆C右焦点F作直线交椭圆C于点M,N,又直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8b190069891330cc6d46587ea524b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
您最近一年使用:0次
名校
解题方法
9 . 已知椭圆
的左,右焦点分别为
,
,且经过点
.
(1)求椭圆
的标准方程;
(2)若斜率为2的直线与椭圆
交于
两点,求
面积的最大值(
为坐标原点).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/486279e7ff9f2b76c2ce712f5dedcb9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/385afe18c3fad66fdeadf74be824283c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d9b4a5f5334c153ddbefc763d8939ef.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若斜率为2的直线与椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
您最近一年使用:0次
2020-11-28更新
|
2141次组卷
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8卷引用:河北省张家口市2019-2020学年高三12月阶段检测数学(理)试题
河北省张家口市2019-2020学年高三12月阶段检测数学(理)试题河北省唐山市第一中学2020-2021学年高二上学期期中数学试题吉林省长春市第二十九中学2020-2021学年高二上学期期末考试数学(理)试题(已下线)2.2 椭圆(基础练)-2021-2022学年高二数学同步训练精选新题汇编(人教A版选修2-1)江西省南昌市麻丘高级中学2021-2022学年高二上学期期中测试数学(文)试题重庆市二0三中学2021-2022学年高二下学期3月月考数学试题广东省汕头市潮阳区河溪中学2022届高三下学期第一次质检(3月)数学试题江西省南昌市第一中学2023-2024学年高二上学期11月期中考试数学试题
10 . 已知椭圆
的左、右焦点为
、
,
,若圆
方程
,且圆心
满足
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/6/f4b4c248-5ff4-43e7-a8dd-5328c6890f2a.png?resizew=206)
(1)求椭圆
的方程;
(2)过点
的直线
交椭圆
于
两点,过
与
垂直的直线
交圆
于
两点,
为线段
中点,求
的面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50e48d1edbfb6a5a48f9a95551d1dbc2.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/69b1a324748fa3786fa709db3b008e6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06a83fef693fb141126b80bdf64bf4de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86dfe425acda7e8b1f9ae17d2f525b99.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/6/f4b4c248-5ff4-43e7-a8dd-5328c6890f2a.png?resizew=206)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1b6f209d1a805437046ca6ef79dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c29a7e8eea08197bf53164a560bee58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a11cb104b04c4e6a1be700e81da279a.png)
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2020-10-23更新
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778次组卷
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4卷引用:陕西省汉中市洋县第一中学2019-2020学年高二上学期期中数学试题