名校
解题方法
1 . 如图,已知椭圆
的右焦点为
,离心率为
是椭圆
上任意一点,且
的最小值为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/29/d93b2c9e-635e-45ea-a50e-8961dd70783e.png?resizew=166)
(1)求椭圆
的方程;
(2)已知点
,点
关于原点的对称点为
,直线
与椭圆
的另一交点分别为
.试判断直线
是否过定点?若过定点,求出定点的坐标;若不过定点,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0c118b51ab426bc1c1b56179094f146.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5d49b81e76de7a72784ca18ec360221.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87b30b71aba098e5eb8da11dbe7e5e35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cacfbce303c3aa4f283075b65d44bfc.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/29/d93b2c9e-635e-45ea-a50e-8961dd70783e.png?resizew=166)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adbece767686a23931c9f7583c7a8b35.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/ab3692cbeb579e58fef5217b2637b9cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
您最近一年使用:0次
名校
解题方法
2 . 在平面直角坐标系
中,已知椭圆
与直线
R),四个点
中有三个点在椭圆
上,剩余一个点在直线
上.
(1)求椭圆
的方程;
(2)若动点
在直线
上,过
作直线交椭圆
于
两点,使得
,再过
作直线
,求证:直线
恒过定点,并求出该定点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a12012d9874b3913d262963ba12d11f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caa615898e91d546451cf0b538fb92d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b3384392c0eaabe04ae2aea7a3f2649.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47c866a0fafe19a2c353aa499c4a0658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13dea1bd3d0dd84b8b6f6ff634c5600c.png)
您最近一年使用:0次
3 . 已知椭圆
的焦距为4,且点
在椭圆
上.
(1)求椭圆
的方程;
(2)已知直线
,过右焦点
的直线(不与
轴重合)与椭圆
交于
,
两点,过点
作
,垂足为
.设点
为坐标原点,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3654254401fc902c3cb4912969f21f88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/009b65882b63f90204ca1402d9b4be64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e13b505788d3d02bf232ac637fc3a8ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7189182cc23d759be2764d141952737b.png)
您最近一年使用:0次
解题方法
4 . 欧几里德生活的时期,人们就发现椭圆有如下的光学性质:从椭圆的一个焦点射出的光线,经椭圆内壁反射后必经过该椭圆的另一焦点.现有椭圆
,长轴长为
,从
的左焦点
发出的一条光线,经
内壁上一点
反射后恰好与
轴垂直,且
.
(1)求
的方程;
(2)设点
,若斜率不为0的直线
与
交于点
均异于点
,且
在以MN为直径的圆上,求
到
距离的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b10e8abf8690e4b129466ddb918bcc94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0cea3567c656e56038183da0bcb7bc9.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39ea1f5bdd213c7c3a571b4c38850bf1.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/8b4324dacfc94867f192cefc9e589fcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0d70af9b2290090df70c33b6487bca5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2024-02-17更新
|
259次组卷
|
3卷引用:山东省临沂市2023-2024学年高二上学期期末学科素养水平监测数学试题
5 . 已知椭圆C:
(
)的长轴长是短轴长的3倍,且椭圆C经过点
.
(1)求椭圆C的方程.
(2)设A是椭圆C的右顶点,P,Q是椭圆C上不同的两点,直线
的斜率分别为
,
,且
.过A作
,垂足为B,试问是否存在定点M,使得线段
的长度为定值?若存在,求出该定点;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/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c08e69243051ead9e21605e11daae67a.png)
(1)求椭圆C的方程.
(2)设A是椭圆C的右顶点,P,Q是椭圆C上不同的两点,直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5671fb25040a712a49e8c8148d67d300.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/03b8bfb1960c394ccfb7bb12de1c1b2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb780dea4bb7d09bf3cb08b7258ebbb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
您最近一年使用:0次
2024-02-06更新
|
332次组卷
|
3卷引用:新疆兵团地州学校2023-2024学年高二上学期期末联考数学试题
6 . 已知椭圆
的离心率为
,点
在椭圆
上,过点
的两条直线
,
分别与椭圆
交于另一点A,B,且直线
,
,
的斜率满足
.
(1)求椭圆
的方程;
(2)证明直线
过定点;
(3)椭圆C的焦点分别为
,
,求凸四边形
面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174142f3bba761585b6bc2653009b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baa1c1a159d2c73b894bc8664f2c0300.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/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b3ac28470679c107f0606482ca1da79.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)证明直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(3)椭圆C的焦点分别为
![](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/8ad77c5823e9c6cd81d8d10055ef62a0.png)
您最近一年使用:0次
2024-02-04更新
|
3577次组卷
|
9卷引用:新疆维吾尔自治区乌鲁木齐市2024届高三第一次质量监测数学试题
新疆维吾尔自治区乌鲁木齐市2024届高三第一次质量监测数学试题湖北省十堰市郧阳中学2024届高三上学期期末数学试题(已下线)专题06 直线与圆、椭圆方程(讲义)黑龙江省大庆市大庆中学2024届高三下学期开学考试数学试题(已下线)专题07 直线与圆、圆锥曲线(已下线)信息必刷卷03海南省琼海市嘉积中学2023-2024学年高三下学期一模考试数学试题海南省四校(海南中学、海口一中、文昌中学、嘉积中学)2024届高三下学期联考数学试题江苏省连云港市连云港高级中学2023-2024学年高三下学期4月阶段测试数学试题
名校
解题方法
7 . 已知椭圆
的右焦点是F,上顶点A是抛物线
的焦点,直线
的斜率为
.
(1)求椭圆C的标准方程;
(2)直线
与椭圆C交于P、Q两点,
的中点为M,当
时,证明:直线
过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42102c1c07562853219ca5918803a27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3389f53711264b0acba3ba6019f8b908.png)
(1)求椭圆C的标准方程;
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6068a99026c27433a7fc8932a5d282a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d7be008afbf741d994ca8c851e98007.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2024-01-17更新
|
1061次组卷
|
4卷引用:四川省攀枝花市2024届高三二模数学(理)试题
四川省攀枝花市2024届高三二模数学(理)试题(已下线)专题06 直线与圆、椭圆方程(分层练)(三大题型+12道精选真题)黑龙江省哈尔滨市第一二二中学校2023-2024学年高二下学期3月月考数学试题宁夏吴忠市2024届高三下学期高考模拟联考试卷(二)理科数学试题
解题方法
8 . 已知椭圆
的离心率为
,且椭圆C过点
,点F为椭圆C的左焦点.垂直于x轴的动直线l与椭圆C相交于不同两点P,Q,直线PF与椭圆C的另一个交点为M(异于点Q),直线QM恒过定点B,则点B的坐标为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d295a4cc3a58f9f38ee98337313c81.png)
您最近一年使用:0次
解题方法
9 . 设椭圆
的离心率等于
,拋物线
的焦点
是椭圆
的一个顶点,
分别是椭圆的左右顶点.
(1)求椭圆
的方程;
(2)动点
为椭圆上异于
的两点,设直线
的斜率分别为
,且
,求证:直线
经过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42102c1c07562853219ca5918803a27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ebaa32f4f1f4f807ca9aeb7fb29951.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9f5f4ad0caac5a0fecb64f3908d2290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ebaa32f4f1f4f807ca9aeb7fb29951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ddfa25e097562b856ddd5e7c0758ee2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90963760acac7bfad3ae03088c6c80b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c3071b3b063a35df2196580f20315ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
您最近一年使用:0次
解题方法
10 . 已知椭圆
的离心率为
,
为椭圆左右焦点,
为椭圆上第一象限内一点,且三角形
面积为
.
(1)求椭圆C的方程;
(2)若直线
交椭圆C于A、B两点,直线PA与直线PB斜率之积为
,证明直线
过定点Q,并求出|PQ|的长.
![](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/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3e18064a4f299256a0d73f55738f14c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd5a8e1bc9748e5519dcd9981b7eb251.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35361e76a7c85d1886728c8d0200b234.png)
(1)求椭圆C的方程;
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc5bd66dd6d5e09ff0893a938aed56e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/602baac86c2b1668ecdfadc8a5948885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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