名校
1 . 已知函数
,定义
表示不超过
的最大整数(如
).
(1)若
在
上单调递增,求实数
的取值范围;
(2)已知当
时,
有唯一极大值
,此时令![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
. 对
,若
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53219f63721ef5731f5b1e07ffc6303d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4f5908d6a1217e493ed7586b6964dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d54a0e82778f606d95a486835ac9f56.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)已知当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/521976f4b831d5e16926de504af83567.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8f429e3b5f3e5fa07ac120ce42aacdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4761151a69551a7fed269fa9fe992a8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c3b2f14e4591a5c15ef0ee73aade7bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2 . 已知点
是圆
上一动点,点
,线段
的垂直平分线交线段
于点
.当点
运动时,设点
的轨迹为E.
(1)求点
的轨迹方程;
(2)已知过点
的直线
分别交E于
和
,且两直线的斜率之积为1,设
的中点分别为
,探究
轴上是否存在定点
,使得
,若存在,求出定点;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0f9dc1bbc5193d7c1e6a2bc1f459990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/996dadd8544543637bd2d32a1f79579e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e86dbcf83cd5d3421b3eed7be7dab32d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cabea664e61863b3b3279dbce607924e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)已知过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0235e0e72a28b90c4abe7b84f3dfa9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c4cd264c97c1f261229925cc5a6761.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c4cd264c97c1f261229925cc5a6761.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72b1a8ebfbce5db9fe9d0e2c8b9598c7.png)
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3 . “
数”在量子代数研究中发挥了重要作用.设
是非零实数,对任意
,定义“
数”
利用“
数”可定义“
阶乘”
且
和“
组合数”,即对任意
,
,根据上述定义,以下结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f76e5c4f5d0373dc716b113881ee5e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37a59558292ad6b3d0978bfd7484990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f76e5c4f5d0373dc716b113881ee5e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0dee336ed12a9b1b273d7fada509737.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f76e5c4f5d0373dc716b113881ee5e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f76e5c4f5d0373dc716b113881ee5e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c995f040779bdf8fd8086b8e0cdc2dad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68166431e6d8d78213cf1c19b8c9e7a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f76e5c4f5d0373dc716b113881ee5e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c7ba785351ac3d88c79e05bcbf484e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f396c36366fa0f636ae68bcdeac787d.png)
A.![]() |
B.对任意![]() |
C.对于任意![]() ![]() |
D.即对任意![]() ![]() |
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名校
4 . 已知点
在圆
上,点
是直线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a461995b90655f5133df6f61c2d09bd.png)
上一点,过点
作圆
的两条切线,切点分别为
、
,又设直线
分别交
轴于
,
两点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b31422fa6d9a8461a4c0ac344cd6ba0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a461995b90655f5133df6f61c2d09bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66ca1a0c83eb6a2058ae381c5775830a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
A.![]() ![]() | B.直线![]() |
C.满足![]() | D.![]() ![]() |
您最近一年使用:0次
5 . 为丰富同学的课余生活,学校开设了形式多样的选修课程.某班级学生进行选课,为达学分要求,每位同学需要在6个课程中任选3个.因特殊原因,有5位同学委托班长帮忙选课.已知各课程缺额人数如下表(缺额人数总和恰好为15),且甲同学要求选择C课程,乙同学要求选择E课程,其余同学无要求.
则在满足甲、乙要求的情况下,这5位同学选课的可能情况共有________ 种(用数字作答).
课程 | A | B | C | D | E | F |
缺额人数 | 0 | 3 | 4 | 2 | 1 | 5 |
您最近一年使用:0次
2024-04-15更新
|
169次组卷
|
2卷引用:广东省中山市华侨中学2023-2024学年高二下学期第一次段考数学试题
名校
6 . 已知函数
.
(1)当
时,求函数
的极值;
(2)讨论函数
的单调性;
(3)当
时,记
的最小值为
,求不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca155e2035d82dbc165b419426a337f9.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c2ac429737efebf150a1bd088ba846.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e4f6be791e028adc74128d9404b7255.png)
您最近一年使用:0次
2024-04-15更新
|
613次组卷
|
2卷引用:广东省中山市华侨中学2023-2024学年高二下学期第一次段考数学试题
7 . 已知函数
,若
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf3cdf145419cd01a90c00914995b0b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c85a5c64020ab803d2641f9cfc1c750.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/723e6760842cde017f2090ed68b48b43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdf113ea2f62467ed5f64646cc4d39ec.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2024-03-07更新
|
1414次组卷
|
8卷引用:广东省中山市桂山中学2023-2024学年高二下学期第一次段考检测数学试题
广东省中山市桂山中学2023-2024学年高二下学期第一次段考检测数学试题(已下线)第六章:导数章末重点题型复习(3)(已下线)高二下学期期中复习选择题压轴题十五大题型专练-2023-2024学年高二数学举一反三系列(人教A版2019选择性必修第三册)浙江省海宁市第一中学2023-2024学年高二下学期3月阶段测试数学试题四川省绵阳市三台县2023-2024学年高二下学期期中教学质量调研测试数学试题四川省成都市石室中学2023-2024学年高三下学期二诊模拟考试文科数学试题(A)四川省成都市石室中学2023-2024学年高三下学期二诊模拟考试理科数学试题(A)四川省绵阳南山中学2024届高三下学期4月绵阳三诊热身考试文科数学试题
名校
8 . 已知函数
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e209348609b0840390bc0168ccc426a0.png)
A.当![]() ![]() ![]() |
B.当![]() ![]() |
C.当![]() ![]() |
D.当![]() ![]() ![]() |
您最近一年使用:0次
2024-02-11更新
|
365次组卷
|
2卷引用:广东省中山市一中学2023-2024学年高二下学期第一次段考数学试题
名校
解题方法
9 . 如图,椭圆
离心率为
,椭圆
的左右顶点分别为
、
,上顶点为
. 点
在椭圆上.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/14/5ecba61f-7e8d-4f65-b3e4-85d419444dae.png?resizew=180)
(1)求椭圆
的方程;
(2)椭圆
上有一动点
,连接
和
分别交
轴于
和
,请问是否存在实数
,使得
.若存在,求出
值,若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3324199c6751f2e0e6d8542783b0d957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd22dd69233b41ef0a4d2f707c281ff6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/14/5ecba61f-7e8d-4f65-b3e4-85d419444dae.png?resizew=180)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbe68e9ebbe4e7d20f5c86ac576d0b51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/902f97913e1af1e6c793f7edfe6b2114.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d7b816eca15d4b7d060013df53edd53.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a45270cee542ea0e89050b7751f3a8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2024-01-24更新
|
147次组卷
|
2卷引用:广东省中山市迪茵公学2023-2024学年高二下学期开学考试数学试题
解题方法
10 . 已知椭圆
经过点
和
.
(1)求
的方程;
(2)若点
(异于点
)是
上不同的两点,且
,证明直线
过定点,并求该定点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea8a480a2fe03293cb8303da8837d7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/913f78382630e50543e5f7192cae3ed3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32476e6bf0fed9c3d3f23ebfd40aa693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
您最近一年使用:0次
2024-01-23更新
|
435次组卷
|
5卷引用:广东省中山市迪茵公学2023-2024学年高二下学期开学考试数学试题