1 . 已知椭圆C:
,短轴长为4,离心率为
,直线l过椭圆C的右焦点F,且与椭圆C交于A、B两点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/14/303104ea-da7a-4ce3-8f7c-88c81f33837d.png?resizew=196)
(1)求椭圆C的标准方程;
(2)求
面积的取值范围;
(3)若圆O以椭圆C的长轴为直径,直线l与圆O交于C、D两点,若动点
满足
,试判断直线MC与圆O的位置关系,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dee14db57f0c762aad845cf5b4a243c0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/14/303104ea-da7a-4ce3-8f7c-88c81f33837d.png?resizew=196)
(1)求椭圆C的标准方程;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
(3)若圆O以椭圆C的长轴为直径,直线l与圆O交于C、D两点,若动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b158307b34af5ff8dd11275150dfe742.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/405a34caaf30b8bd540aa0a1e699df25.png)
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2023-02-09更新
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319次组卷
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2卷引用:江苏省镇江市句容碧桂园学校2022-2023学年高二下学期期中模拟数学试题
名校
解题方法
2 . 已知椭圆C:
,左顶点分别为A,上顶点为B,左右焦点分别为F1,F2,P为椭圆上一点,
最大值为3,△ABF2的面积为
.
(1)求椭圆方程;
(2)已知直线过F1与椭圆C交与M,N两点(M在N上方),且
,若
,求直线斜率的值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96fa27f8db6167d4802a510371077bb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edb57d84f9bbcb3e30d4ce7e2e1e8604.png)
(1)求椭圆方程;
(2)已知直线过F1与椭圆C交与M,N两点(M在N上方),且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a23b02320b78ef38432511d0294ee319.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df1a4faaba32c9a647531789112361aa.png)
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3 . 已知椭圆
的左焦点为F,C上任意一点M到F的距离最大值和最小值之积为3,离心率为
.
(1)求C的方程;
(2)若过点
的直线l交C于A,B两点,且点A关于x轴的对称点落在直线
上,求n的值及
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(1)求C的方程;
(2)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24dad2719dc7679534cdb0e99065de16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eaceb8d6c6927e14d9ac7a557a2b11d.png)
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2023-01-16更新
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659次组卷
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4卷引用:浙江省杭师大附2022-2023学年高二下学期期中数学试题
浙江省杭师大附2022-2023学年高二下学期期中数学试题安徽省淮南市2023届高三上学期一模数学试题(已下线)江苏省七市2022届高三下学期第二次调研考试数学试题变式题17-22(已下线)专题16圆锥曲线(解答题)
4 . 已知点
为直线
与椭圆
的交点,点
为直线
椭圆
的交点,
为坐标原点.
(1)若直线
的方程为
,求
的值;
(2)是否存在常数
,使得当
时,
的面积恒为定值?若存在,求出
的值;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/766bc42b7ead98238a339bb4dc42bb51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb4402aeb853b22f20992156957ef0fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87f8af9ce5d927e6f422de42ead6ffb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/014afe44e0905646ea1797c6d59cdefc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4757181824e15e0f21e5bdd55448783.png)
(2)是否存在常数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f132407bf1cc9d1f460d50f1b0547993.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
5 . 已知双曲线
:
的离心率为
,其左、右顶点分别为
,
,右焦点为
,
为
的左支上不同于
的动点,当
的纵坐标为
时,线段
的中点恰好在
轴上.
(1)求双曲线
的标准方程;
(2)若点
,连接
交
的右支于点
,直线
与直线
相交于点
,证明:当
在
的左支上运动时,点
在定直线上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ec7fa23be9cbe9a50607ea6bc8a4ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.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/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0739793f234f8e86adc6177801ae7295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(1)求双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99296bab1b42898e7ca336a822510258.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/438f34bc8b04e8c494b91306ac6fe352.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/800c5e266b4ad8462a46970f0a232d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f387b16cc48e57112c89c8af2a90c1d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.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/0b68df477b3ee45ac0f725db00d465a1.png)
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解题方法
6 . 已知如图,长为
,宽为
的矩形
,以为
焦点的椭圆
恰好过
两点,
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/27/b78ab523-88da-4bcd-bd9e-d072dc4bb876.png?resizew=169)
(1)求椭圆
的标准方程;
(2)根据(1)所得椭圆
的标准方程,若
是椭圆
的左右顶点,过点
的动直线
交椭圆
与
两点,试探究直线
与
的交点是否在一定直线上,若在,请求出该直线方程,若不在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f326db309ab6bf16acfab03080650c73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/27/b78ab523-88da-4bcd-bd9e-d072dc4bb876.png?resizew=169)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)根据(1)所得椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a948d2f7732d7f03e986c63712089b.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/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
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解题方法
7 . 已知椭圆
的离心率为
,以原点为圆心、椭圆的短半轴长为半径的
与直线
相切.
(1)求椭圆
的方程;
(2)过定点
斜率为
的直线与椭圆
交于
两点,若
,求实数
的值及
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d5ab74296abcbcf994c02b5834cd699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d38f9106cef0b638e62c90afc1c523cd.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过定点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/451fc6e4248b63e70595f23842f06c93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.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/e2ebbb89a7c50ed23e32f1dcad606c30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4f02028a3847c4807c2d3cf0ea7efb8.png)
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2023-01-07更新
|
523次组卷
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5卷引用:天津市五校联考2023-2024学年高二上学期期中考试数学试题
名校
8 . 已知椭圆
的离心率为
,右焦点为
,斜率为1的直线
与椭圆
交于
两点,以
为底边作等腰三角形,顶点为
.
(1)求椭圆
的方程;
(2)求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ec6f446f4042685b4a20e0bf2a91735.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174142f3bba761585b6bc2653009b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc1ad2c2e04d161603f1be718b33ed44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c2165d09637fb713fcd5c7eeea058e4.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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2023-01-05更新
|
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8卷引用:天津市汇文中学2022-2023学年高二上学期期中数学试题
天津市汇文中学2022-2023学年高二上学期期中数学试题北京师范大学第二附属中学2022-2023学年高二上学期期中考试数学试题湖南省邵阳市新邵县2017-2018学年高二上学期期末文科数学试题(已下线)第二章 平面解析几何之圆锥曲线的方程(A卷·知识通关练)(6)江苏省泰州市2022-2023学年高二上学期第一次教学质量调研考试数学试题安徽省宿州二中雪枫中学校区2022-2023学年高二上学期阶段测试(二)数学试题广西桂林市逸仙中学2022-2023学年高二上学期10月月考数学试题第3章 圆锥曲线与方程 单元综合测试卷-2022-2023学年高二数学新教材同步配套教学讲义(苏教版2019选择性必修第一册)
9 . 已知椭圆
的左右顶点为A、B,直线l:
.已知O为坐标原点,圆G过点O、B交直线l于M、N两点,直线AM、AN分别交椭圆于P、Q.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/16ccb352-37e8-476f-8d77-b9e05730ebb0.png?resizew=214)
(1)记直线AM,AN的斜率分别为
、
,求
的值;
(2)证明直线PQ过定点,并求该定点坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82e7d9f4f7ace849e09e9adcb786b7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/16ccb352-37e8-476f-8d77-b9e05730ebb0.png?resizew=214)
(1)记直线AM,AN的斜率分别为
![](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/6b881044b5c73db6fcce110525741b02.png)
(2)证明直线PQ过定点,并求该定点坐标.
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2022-12-20更新
|
712次组卷
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6卷引用:江苏省镇江市镇江中学2023-2024学年高二上学期期中数学试题
10 . 已知椭圆C:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
,
,
,
,
这四点中恰有三点在椭圆C上.
(2)点E是椭圆C上的一个动点,求
面积的最大值;
(3)过
的直线l交椭圆C于A、B两点,设直线l的斜率
,在x轴上是否存在一点
,使得以DA、DB为邻边的平行四边形为菱形?若存在,求实数m的取值范围;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/434249d6640b0c1a712d215cf8b83d5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4c21b59d92c33a3b451d6cc13878c45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29949b6603f30e3cda2a1af6de90f3f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/318f2f6154dc3463b88fe889a5403c9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c41b2f7ca11db3aaea46c69286adbce.png)
(2)点E是椭圆C上的一个动点,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c48e42ce4fd7e6da946bf2b7b22200db.png)
(3)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d72babd92b33b44fa45d0d559c03f617.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0d68648b10fce54dfc19c5ee60086d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/349109e1d324c60a977c98bc30ec9973.png)
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2022-12-16更新
|
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