解题方法
1 . 已知椭圆E:
的离心率为
,A,B为椭圆的左、右顶点,C为椭圆的上顶点,原点O到直线AC的距离为
.
(1)求椭圆E的方程;
(2)P为椭圆上一点,直线AC与直线PB交于点Q,直线PC与x轴交于点T,设直线PB,QT的斜率分别为
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9868f77d5ab5073b6145f1c6d272122e.png)
(1)求椭圆E的方程;
(2)P为椭圆上一点,直线AC与直线PB交于点Q,直线PC与x轴交于点T,设直线PB,QT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/00b3ebbb4668794a2ed95c621f63f318.png)
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名校
解题方法
2 . 已知点
为椭圆
上两点,且
,其中
为坐标原点,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ebaa32f4f1f4f807ca9aeb7fb29951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/271e595c257e4c0ade90a9bbbf0e6b0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3825ccc273ef9a672a606432d165b866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff24c95fe581befd56c3bcc70e88b726.png)
A.![]() | B.2 | C.![]() | D.3 |
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3 . 过椭圆
的左焦点作斜率为1的弦
,则弦
的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf80369ceae912b700e10970a47bb51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
解题方法
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/2021/5/30/2732324151681024/2769034852319232/STEM/563c80062b9d486caeee3b4c16fd6d88.png?resizew=225)
(1)若
,求曲线
的方程;
(2)如图,作斜率为正数的直线
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/f09757d013574cf058d5bb944fdf034a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb8f41e2ee771f07353f983f2396b7ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abeacbd3604d4e926b8d2ffe370f5322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/626706e779756baf8f7aa4cd276d2017.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://img.xkw.com/dksih/QBM/2021/5/30/2732324151681024/2769034852319232/STEM/563c80062b9d486caeee3b4c16fd6d88.png?resizew=225)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84205891bda0469b08dad2045441e090.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f09757d013574cf058d5bb944fdf034a.png)
(2)如图,作斜率为正数的直线
![](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/01c74a907dda6bb7d9d56d009d9df253.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/f09757d013574cf058d5bb944fdf034a.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/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbdbb45d7359537458736c9ea5bf9e1d.png)
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6卷引用:江苏省淮安市淮阴中学2023-2024学年高二上学期10月阶段练习数学试题
江苏省淮安市淮阴中学2023-2024学年高二上学期10月阶段练习数学试题上海市奉贤中学2021届高三下学期期中数学试题(已下线)上海市华东师范大学第二附属中学2021届高三下学期4月月考数学试题(已下线)3.2.2 双曲线的几何性质(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)(已下线)第3章 圆锥曲线与方程 单元综合检测(基础过关)(单元培优)-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)(已下线)3.2双曲线(专题强化卷)-2021-2022学年高二数学课堂精选(人教A版2019选择性必修第一册)
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5 . 设椭圆
的左、右焦点分别为
,
,下顶点为A,O为坐标原点,点O到直线
的距离为
,
为等腰直角三角形.
(1)求椭圆C的标准方程;
(2)若倾斜角为45°的直线经过椭圆C的右焦点
,且与椭圆C交于M,N两点(M点在N点的上方),求线段
与
的长度之比.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.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/e86dbcf83cd5d3421b3eed7be7dab32d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bc46597c25f6c0bd80bf522c057bddd.png)
(1)求椭圆C的标准方程;
(2)若倾斜角为45°的直线经过椭圆C的右焦点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/183b6a0cef4256c9696a5bca31053da5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a12a030f853a383a50fd889486c9f42.png)
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解题方法
6 . 如图,在平面直角坐标系
中,已知椭圆
的焦点为
,
,点
为上顶点,直线
交椭圆于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/3a19a349-255c-4e88-8f61-101539b06ca6.png?resizew=204)
(1)若
,
,求点
的坐标;
(2)若
,求椭圆的离心率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5076829e649b3f3866d4a7e07a5713e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/697c20fca284394bf5d5b9e5f6d952e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cabea664e61863b3b3279dbce607924e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/3a19a349-255c-4e88-8f61-101539b06ca6.png?resizew=204)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fadd2e6f0aa16c2c466c904474ffc79c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4580cc037c0c760c728cdbb74a8154c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c85d02822aed80dc070e71f496310bd3.png)
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5卷引用:2020届江苏省淮安市淮阴中学、姜堰中学高三上学期期中联考数学试题
2020届江苏省淮安市淮阴中学、姜堰中学高三上学期期中联考数学试题(已下线)专题11 椭圆-2020-2021学年高中数学新教材人教A版选择性必修配套提升训练江苏省南通市海门市包场高级中学2020-2021学年高二上学期期中数学试题沪教版(2020) 选修第一册 单元训练 第2章 椭圆(A卷)安徽省池州市贵池区2023-2024学年高二上学期期中教学质量检测数学试卷
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7 . 如图,在平面直角坐标系xOy中,已知椭圆
的离心率为
,且过点
.
为椭圆的右焦点,
为椭圆上关于原点对称的两点,连接
分别交椭圆于
两点.
⑴求椭圆的标准方程;
⑵若
,求
的值;
⑶设直线
,
的斜率分别为
,
,是否存在实数
,使得
,若存在,求出
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cfa1e7ffae662aefb49a44c52d4954d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a0f575d35434227238db68584af0d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7471451108cf5d0fbb66e8819759a6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
⑴求椭圆的标准方程;
⑵若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee5b4b37387afff224ccf309fb2f1c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ec745ef30edae10c0ca8a5e73467e71.png)
⑶设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.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/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef521fe459ea380e63163f37ce99f6c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://img.xkw.com/dksih/QBM/2018/4/16/1925359650873344/1930805847564288/STEM/e238669ffdb24f749d17e5f703b0c116.png?resizew=209)
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10卷引用:江苏省淮安市等四市2018届高三上学期第一次模拟数学试题
江苏省淮安市等四市2018届高三上学期第一次模拟数学试题江苏省宿迁市2018届高三上学期第一次模拟考试数学试题江苏省徐州市2018届高三第一次质量检测数学试题(已下线)《2018届优等生百日闯关系列》【江苏版】专题二 第一关 以解析几何中定点、定值为背景的解答题2018届江苏省盐城中学高三下学期四模数学试题2020届天津市和平区高考二模数学试题(已下线)数学-6月大数据精选模拟卷01(海南卷)(满分冲刺篇)江苏省镇江市扬中市第二高级中学2020-2021学年高二下学期期初开学考试数学试题江苏省盐城市伍佑中学2020-2021学年高二下学期期初数学试题江苏省苏州市张家港高级中学2018-2019学年高二下学期3月月考数学(文)试题
12-13高二上·江苏淮安·期末
解题方法
8 . 已知椭圆
的中心
在原点,长轴在
轴上,焦距为6,短轴长为8,
(1)求椭圆
的方程;
(2)过点
作倾斜角为
的直线交椭圆
于
两点,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c2f59980057f51e5cf3e86038cfaa16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
![](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/e2b83beedb3438153e6f728545fe3e03.png)
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