解题方法
1 . 若椭圆
的长轴长、焦距、短轴长成等差数列,则该椭圆的离心率是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
您最近一年使用:0次
解题方法
2 . 已知双曲线C的标准方程为
.若虚轴长为
,且双曲线上的任意一点P到左右两个焦点
距离之差的绝对值为2.
(1)求双曲线C的标准方程;
(2)若点
(0,1),求
的取值范围;
(3)若斜率为
的直线
过右焦点
,且与C的右支相交于A、B两点,问:在x轴上是否存在定点M,使得无论直线
绕点
怎样转动,总有
成立?如果存在,求出定点M的坐标;如果不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ec7fa23be9cbe9a50607ea6bc8a4ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/923cc0c9abcb27048b62c1164471b261.png)
(1)求双曲线C的标准方程;
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d44e8bc37ed03f44470762748a8f942a.png)
(3)若斜率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](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/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94d79ef94d43b2afa595c580906358b1.png)
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解题方法
3 . 设函数
的图象由方程
确定,对于函数
给出下列命题:
①对于任意的
,恒有
成立;
②函数
的图象上存在一点
,使得 P到原点的距离小于
;
③对于任意的
,
恒成立;以上命题中,真命题的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5947af41ec4a359679d934a135e53434.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
①对于任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd0f49df60c32911343a22ecd6acf0c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a57d6d7b74ae630e6ce3b43afe6060.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
③对于任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/371ecca5fdf54f1057e4312844b7e1e6.png)
A.0 | B.1 | C.2 | D.3 |
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解题方法
4 . 已知直线
与抛物线
交于A、B两点,则弦AB的中点到准线的距离为(( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ab466aedd6e176088d8dee7bc3e3aaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42102c1c07562853219ca5918803a27.png)
A.4 | B.![]() | C.8 | D.![]() |
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5 . 如图,是抛物线型拱桥,在平时水面离拱顶3米,水面宽
米,由于连续降雨,水位上涨了1米,此时水面宽为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b10e8abf8690e4b129466ddb918bcc94.png)
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解题方法
6 . 已知椭圆C:
的左右两焦点分别为
和
,右顶点是A,且
,
.
(1)求椭圆C的标准方程;
(2)若斜率为1的直线
交椭圆C于M、N两点,且
,求直线
的方程.
![](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/1ee6b72b95a4296f256e2bc1db9997e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5501e5af18cf5c9ec3b7cb0884fea1d9.png)
(1)求椭圆C的标准方程;
(2)若斜率为1的直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8662e599a613100e4e42115bee71a0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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7 . 如图,已知椭圆
和抛物线
,
的焦点
是
的上顶点,过
的直线交
于
、
两点,连接
、
并延长之,分别交
于
、
两点,连接
,设
、
的面积分别为
、
.
的值;
(2)求
的值;
(3)求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f036026cd92e9ad059c3f22a7658638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa1907d8c2d53e40d415a64d28e601a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5dbfcff5c8b5d4e312a9247b2b8b0a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4cfef623a9534b5708df5f95f1760a5.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/25dd698d57d1cf239eb8752aecaaa4f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e07f90e126b62cace1bb0de0041d77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a711bf44ed64556c72fbb0e7f42c27f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7db9b4ac9106bfaf32eba6ae265872b.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90a945bf282823cb997fbdec1d53e2e0.png)
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2024-04-19更新
|
981次组卷
|
3卷引用:上海市闵行区2024届高三下学期学业质量调研(二模)数学试卷
8 . 已知
,集合
,
,
. 关于下列两个命题的判断,说法正确的是( )
命题①:集合
表示的平面图形是中心对称图形;
命题②:集合
表示的平面图形的面积不大于
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b923078510697d5f7f9ea392eb76dd9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01a037f86b6fbf91b8e112ae8613ad4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28d2f35fefd24f3cb607b9771ea69951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a41a4507d85c446a8f3324de736dc778.png)
命题①:集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
命题②:集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa35373ec4e4684107b42adb7a5161.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c79cff5cd16432d03d1c38e2ea800a38.png)
A.①真命题;②假命题 | B.①假命题;②真命题 |
C.①真命题;②真命题 | D.①假命题;②假命题 |
您最近一年使用:0次
名校
解题方法
9 . 已知椭圆的方程为
,
为椭圆短轴顶点,
为椭圆
的右顶点
(1)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00857b232a86db6a924b34320f928717.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c22f3e397e5d4b120f92a40657eaf7aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.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/43a67260be97cca75002f4814d1b0418.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f6d6a0ee7672e93d79d51b938d9299e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
(3)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10416030bbf5df1fb9cb66e0220bbd95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5425108c557f0f21474c045334f97d9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05afb62c4e3a66a50cd0252762324bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5425108c557f0f21474c045334f97d9c.png)
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名校
10 . 我们把形如
和
的两个双曲线叫做共轭双曲线.设共轭双曲线
,
的离心率分别为
,
,则
的最大值是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87e09a56c608e418a5128f3eb32940e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4504af6d6703564a43ebf2b1f57b43a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d33558881906c228c262ff8024dcfc4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a33a99190a8fd29c36d5a002e3197cc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1abe682f8504a051f83f91f2341f1a8.png)
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2024-03-14更新
|
647次组卷
|
3卷引用:上海市闵行中学2024届高三下学期4月月考暨二模模拟考试数学试卷
上海市闵行中学2024届高三下学期4月月考暨二模模拟考试数学试卷上海市进才中学2023-2024学年高二下学期3月月考数学试题(已下线)专题02圆锥曲线全章复习攻略--高二期末考点大串讲(沪教版2020选修一)