名校
解题方法
1 . 将
上各点的纵坐标变为原来的![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b78bff924572785acdc2227f4898e54f.png)
倍(横坐标不变),所得曲线为E.记
,
,过点p的直线与E交于不同的两点A,B,直线QA,QB与E分别交于点C,D.
(1)求E的方程:
(2)设直线AB,CD的倾斜角分别为
,
.当
时,
(i)求
的值:
(ii)若
有最大值,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d61985901c2bc698d72ac88f4e1eb65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b78bff924572785acdc2227f4898e54f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fd074e1ed924a49858f84cc7c0bf654.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ecfca4a090b78015210871850538361.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/104858bd2e55876487eade49e84d62c2.png)
(1)求E的方程:
(2)设直线AB,CD的倾斜角分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bc282dae4ac9132196ac5d13f63b901.png)
(i)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ace6dde9651ac2caaff53a25abebaae5.png)
(ii)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/628560d39eeb0339fa00c9c15ab2c095.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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2024-03-12更新
|
1302次组卷
|
3卷引用:河北省衡水中学2023-2024学年高三下学期期中自我提升测试数学试题
名校
解题方法
2 . 已知椭圆E:
过点
,且其离心率为
.
(1)求椭圆E的方程;
(2)过点
的斜率不为零的直线与椭圆E交于C,D两点,A,B分别为椭圆E的左、右顶点,直线AC,BD交于一点P,M为线段PB上一点,满足
,问
是否为定值,若是,求出该定值;若不是,说明理由(O为坐标原点).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c453894bbede5be3f254614050b79c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
(1)求椭圆E的方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2a5e336b6bcba6354fd366c892dd06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12352953fcc899f4f5591b4a82edc4a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/831d25950602b60473f0b819c78c22c7.png)
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2024-03-08更新
|
1349次组卷
|
4卷引用:广东省广州市番禺区2023-2024学年高二下学期期中数学试卷
名校
解题方法
3 . 已知椭圆C:
过点
,长轴长为
.
(1)求椭圆方程及离心率;
(2)直线l:
与椭圆C交于两点M、N,直线AM、AN分别与直线
交于点P、Q,O为坐标原点且
,求证:直线l过定点,并求出定点坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfaba0309c471a4246ca3254a3cdaf17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e2031d209711b058f3d278ede3c1d33.png)
(1)求椭圆方程及离心率;
(2)直线l:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15b256345d7109e081b7c895591e995d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a089c207e39a24d0d82aa853ac2bbb8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/030c0325fde242e06cee8d270ba89d68.png)
您最近一年使用:0次
2024-03-06更新
|
934次组卷
|
4卷引用:福建省厦门第一中学2023-2024学年高二下学期期中考试数学试卷
4 . 已知椭圆
:
,
是其左顶点,过点
且不与
轴重合的直线
与
交于
、
两点.
(1)若直线
垂直于
轴,求线段
的长度;
(2)若
,且点
在
轴上方,求
、
两点的坐标;
(3)设直线
与
轴交于点
,直线
与
轴交于点
,是否存在直线
,使得
的面积是
的两倍?若存在,求出直线
的方程;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d80b861ba40387cb2bcd04945f5a371a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfc3e47a358860345e74450ce2af9f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a45f435b604c73af7053422243b66cd5.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
(3)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9763846b1131e1e3e2d741ad95d5bb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98013a5042685a1db94249e70c62c09a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2024-01-14更新
|
284次组卷
|
2卷引用:上海市南洋模范中学2023-2024学年高二下学期期中考试数学试卷
名校
解题方法
5 . 已知椭圆
的左,右焦点分别为
,下顶点为A,点M在直线
上.
(1)若
,线段AM 的中点在x轴上,求M 的坐标;
(2)若直线l与y轴交于B,直线AM 经过右焦点
,在
中有一个内角的余弦值为
,求b的值;
(3)若
,直线 l与椭圆Γ没有公共点,在椭圆Γ上存在一点
,
,点P到l的距离为d,且
,当a变化时,求d的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2e31f17d3eae2f76500ee2e8f955865.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f49644cd9fa4688cc3a74a234952530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4a029686de8da4b04df32af401089a9.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa5584ebddd742ffcf0e58a4c3b108c.png)
(2)若直线l与y轴交于B,直线AM 经过右焦点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a5e0a51c9e14fb246b0ba0b231c1e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eac97e6740365c85ad857aff85cefbe5.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfc97864dd9abe8013867fdd6b9562c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/386ddd7cba3dc92cb43743f663ae63d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d0ca9a39621967d7ba5629ea9b12d78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c318dc642320a42ad8f7c565246858b5.png)
您最近一年使用:0次
名校
解题方法
6 . 已知椭圆C:
的左、右焦点分别为
,椭圆C上一动点A在第二象限内,点A关于x轴的对称点为点B,当AB过焦点
时,直线
过点
.
(1)求椭圆C的方程;
(2)点B与焦点
所在直线交椭圆C于另一点P,直线AP交x轴于点T,求
面积最大时,点A横坐标的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db796822debda1127de88f1f7583af75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e86dbcf83cd5d3421b3eed7be7dab32d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7518d1f1a78ef8d78b45d0dd6c7646a.png)
(1)求椭圆C的方程;
(2)点B与焦点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a04e30d5827f2120d997997e4e31ba17.png)
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名校
解题方法
7 . 已知椭圆
的右焦点
恰为抛物线
的焦点,过点
且与
轴垂直的直线截抛物线、椭圆所得的弦长之比为
.
(1)求
的值;
(2)已知
为直线
上任一点,
分别为椭圆的上、下顶点,设直线
与椭圆的另一交点分别为
,求证:直线
过定点.并求出该定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b24214f111f7c6d2b64e53ad970438b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc58c62444bf42a25289c45425a00f2.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/41322821ce31416fdac8dd6e0aa41c71.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2af31a8d791f28399fc13be3250136dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ebaa32f4f1f4f807ca9aeb7fb29951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790ef3382b1c731f2885eecfd92c2a86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
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8 . 在椭圆
中,A、B是左右顶点,P是椭圆E上位于x轴上方的一点.直线PA、PB分别交直线
于M、N两点,PA、PB的斜率分别记为
.
(1)求
的值;
(2)若线段PB的中点Q恰好在以MN为直径的圆上,求m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d82bdda318755491600d352fff955b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be03641c9e23456c63a8eb57a3540f62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42623f14667ebfa914eb12d026023d6f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4757181824e15e0f21e5bdd55448783.png)
(2)若线段PB的中点Q恰好在以MN为直径的圆上,求m的取值范围.
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名校
解题方法
9 . 已知椭圆
的右焦点是
,过点
的直线交椭圆
于
两点,若线段
中点
的坐标为
.
(1)求椭圆
的方程;
(2)已知
是椭圆
的下顶点,如果直线
交椭圆
于不同的两点
,且
都在以
为圆心的圆上,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/967dc76338e277e690e0e524d4179e1b.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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efc447b298e9d697770c34298a2483c.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cbb6666f63b9f4832e573039a28ef6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cf8085c9d6fc73d634c7c316a14df78.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/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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10 . 已知椭圆
过点
,且离心率为
.
(1)求椭圆
的标准方程;
(2)过动点
作直线交椭圆
于
两点,且
,过
作直线
,使
与直线
垂直,证明:直线
恒过定点,并求此定点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b8f9648c81481bb487a43f95c04d991.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c30ee8b98bd071f65863897db9cbacb5.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/1f30acc34f4ee1077532ae6808af2ab2.png)
![](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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2023-09-03更新
|
1014次组卷
|
6卷引用:广东省揭阳市普宁市第二中学2024届高三上学期期中数学试题
广东省揭阳市普宁市第二中学2024届高三上学期期中数学试题河南省南阳市第一中学校2023-2024学年高二上学期期中数学考前模拟试题北京市房山区2024届高三上学期入学统练数学试题黑龙江省牡丹江市第一高级中学2023-2024学年高二上学期10月月考数学试题河北省沧州市泊头市第一中学2023-2024学年高二上学期10月月考数学试题(已下线)第3章 圆锥曲线与方程章末题型归纳总结-【帮课堂】2023-2024学年高二数学同步学与练(苏教版2019选择性必修第一册)