名校
1 . 若
,且
,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9053df826e0293fb6a242f5a2cc599f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02265b6260d8eb53f9be2ecf14b02b4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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昨日更新
|
106次组卷
|
2卷引用:江西省吉安市六校协作体2024届高三下学期5月联合数学试题
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解题方法
2 . 已知函数
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc7e499a99496563ba14bea539e9ff1.png)
A.![]() ![]() |
B.![]() ![]() |
C.若方程![]() ![]() ![]() ![]() |
D.若方程![]() ![]() ![]() ![]() ![]() |
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3 . 已知函数
的定义域为
,
是偶函数,当
时,
,则曲线
在点
处的切线斜率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac87434324956e4145e38ad92a1aa95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d0e9cd42a043be4c6e552c6cf4cbdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e29d9430326bf1794e23077e89d47a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1adbfd9d0188bc6e5eb87efdde35f49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9770b18d9984172e6c08bf0921ec4200.png)
A.![]() | B.![]() | C.2 | D.![]() |
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2024-06-13更新
|
677次组卷
|
3卷引用:江西省吉安市第一中学2024届高三三模数学试题
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解题方法
4 . 为营造欢乐节日气氛、传承传统习俗,同时又要确保公共安全,某市决定春节期间对烟花爆竹燃放实施“禁改限”,规定可以在农历正月初一到初六及十五在市区
两个规定区域燃放烟花爆竹,甲、乙两人各自决定从这7天选1天去
中的一个区域燃放烟花爆竹,若甲、乙两人不在同一天去同一个地方,则去的种数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
A.35 | B.84 | C.91 | D.182 |
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5 . 已知
的内角
,
,
的对边分别为
,
,
,且
,若
的面积等于
,则
的周长的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21ef8315c7025591f30d250797e7eff3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41322821ce31416fdac8dd6e0aa41c71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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2024-06-12更新
|
539次组卷
|
3卷引用:江西省吉安市第一中学2024届高三三模数学试题
6 . 已知三棱锥
的所有棱长均为6,点
分别在棱
上,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
,则四棱锥
的体积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2013303974d530fce9a9930938f4c2b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee16d92c14db93561e0163ff0df8c85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b596fa2a37c7738dc7c23251f5814c2.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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7 . 设集合
,则集合
的子集个数为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31529938ca4fe48f3be1c17b771859ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
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8 . 已知点
是抛物线
上不同三点,直线
与抛物线
相切.
(1)若直线
的斜率为2,线段
的中点为
,求
的方程;
(2)若
为定值,当
变动时,判断
是否为定值,若为定值,求出该定值;若不为定值,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35644a7d25d0410409238f52c8818083.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e39bd21af422662049290a3aa4841b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dec2ca6438c82b43f746057d8129885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e325d1e4485ec4cfb3d7bb038d675d7d.png)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18fe48905f1e58b2fe08706c2f53b55c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13d726b14a313e000a81526162f35748.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b3c5a4887dfe02b02ee90d740151e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1835c6f51b4471243b5e1a3d6e74c203.png)
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9 . 已知点
是椭圆
上关于原点对称且不与
的顶点重合的两点,
的左、右焦点分别为
,点
为原点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/279cefeb5c389a37a71e5fd3925f5954.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
A.![]() ![]() |
B.![]() |
C.![]() |
D.若![]() ![]() ![]() |
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解题方法
10 . 2023年10月国家发改委、工信部等部门联合印发了《加快“以竹代塑”发展三年行动计划》,该计划将推动“以竹代塑”高质量发展,助力减少塑料污染,并将带动竹产业新一轮的增长.下表为2019年—2023年中国竹产业产值规模
(单位:千亿元),其中2019年—2023年的年份代码
依次为
.
(1)记第
年与
年
中国竹产业产值规模
差值的2倍的整数部分分别为
,从
中任取2个数相乘,记乘积为
,求
的分布列与期望;
(2)根据以上数据及相关系数,判断能否用线性回归模型拟合中国竹产业产值规模
与年份
之间的关系.
参考数据:
,
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1db0758d5878a469b85f4612573db940.png)
相关系数
若
,则认为
与
有较强的相关性.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d721177bd50b50b3f923e4d1768dbd9f.png)
![]() | 1 | 2 | 3 | 4 | 5 |
![]() | 2.89 | 3.22 | 3.82 | 4.34 | 5.41 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12444d6e8d3b097a9d090e6ed06042e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c19482c76310dc031696d73de0894016.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/697e84689167caa36ac89184035aab56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070bc2b987dc22130e554bd47753f425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
(2)根据以上数据及相关系数,判断能否用线性回归模型拟合中国竹产业产值规模
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
参考数据:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3b143379ef32c148ae4bba788056728.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e45a40fdbcfc12977715793c117af9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/454ccb3037c4f45b146b92aedb15804b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1db0758d5878a469b85f4612573db940.png)
相关系数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3efc2abb538887a406e584dc28c1946.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2991502b0be7df4183b9e42b6c53c6e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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