名校
解题方法
1 . 已知函数
,且不等式
的解集为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d846fd8aa11cfd66a948218fc49cdd9e.png)
(1)求
的值;
(2)设函数
,若不等式
对任意
且
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6d0d8546284558d2c168e52086cee37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08b3449a8a558267c2a1baab2acc6a37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d846fd8aa11cfd66a948218fc49cdd9e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e2825e22f98e16bb5899141881d75b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff00b3c0cbf6fac434a83e667971f5f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40e72f6b2ef3329828cb8fc873eeba7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0baedc4d7e690ab3f7d80d30ba0a9efe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
2 . 在极坐标系中,圆
的方程为
,以极点为坐标原点,极轴为
轴正半轴建立平面直角坐标系,设直线
的参数方程为
为参数
.
(1)求圆
的标准方程和直线
的普通方程;
(2)若直线
与圆
恒有公共点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0014763d75c61d19b696617c89e95253.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/a69bd9c188fffa49686b989e17e6cb43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)若直线
![](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/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
解题方法
3 . 已知抛物线
:
的焦点为
,抛物线
上存在一点
到焦点
的距离等于
.
(1)求抛物线
的方程;
(2)过点
的直线
交抛物线
于
两不同点,交
轴于点
,已知
,
,求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3764ba3aa0a241787f4661026bb14053.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/647d06f6c1f4268315cddfe7176e0b9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.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/1435ad6124818779e9399305d631012f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03f089708e1b40af041df37f295357e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febf7413b35cf2889fdb57a6b519087c.png)
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4 . 不等式
表示的区域在直线
的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21254430f357f3faf906310526d0a827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed0e1da6c7bf1882513d4b0a90cd5e3d.png)
A.右上方 | B.右下方 | C.左上方 | D.左下方 |
您最近一年使用:0次
名校
解题方法
5 . 已知向量
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/574330405a4988bd27b513351c827023.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd36ab80e520187e70446b91c3c1784.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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解题方法
6 . 在政府工作报告指出,要加快建设创新型国家,把握世界新一轮科技革命和产业变革大势,深入实施创新驱动发展战略,不断增强经济创新力和竞争力
某手机生产企业积极响应政府号召,大力研发新产品,争创世界名牌
为了对研发的一批最新款手机进行合理定价,将该款手机按事先拟定的价格进行试销,得到一组销售数据
,如表所示:
(1)若变量
,
具有线性相关关系,求产品销量
百件
关于试销单价
千元
的线性回归方程
;
(2)用(1)中所求的线性回归方程得到与
对应的产品销量的估计值
当销售数据
对应的残差的绝对值
时,则将销售数据
称为一个“好数据”
现从
个销售数据中任取
个,求“好数据”至少有
个的概率.
参考数据:
参考公式:线性回归方程中
,
的估计值分别为
,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee6fa7819f87abc6f3929316621181d6.png)
单价 | ||||||
销量 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c61e103a765e2069a4615dd43ffd2b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/285912b40e1dce8bfc029df88115c961.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1db6103cb0f1d2bd6b19235d53ee7e98.png)
(2)用(1)中所求的线性回归方程得到与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97ea8f47d8d8d9e1832d52b1c7425450.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7894df668a4338c8372539cfdb18f53b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef046c85a536174bec951a53d9f60b33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24cfc76683f75185314113df7a2b38f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef046c85a536174bec951a53d9f60b33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
参考数据:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac6f0390adb5e467db8f8ac55b87e92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abc5505526d11946ca7d3a4421a9e08f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0032ca31e3cba58f973c6e75b907fb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/645633a1baf36d0f1d01ecb57757c0e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b2dac6ea8715d871d15ba13883d2392.png)
您最近一年使用:0次
2024-02-04更新
|
673次组卷
|
6卷引用:宁夏石嘴山市第三中学2023-2024学年高三上学期期中考试文科数学试卷
宁夏石嘴山市第三中学2023-2024学年高三上学期期中考试文科数学试卷(已下线)【一题多变】 相关关系 回归分析吉林省长春市第二实验中学2023-2024学年高二下学期开学测试数学试题(已下线)8.2 一元线性回归模型及其应用(分层练习,7大题型)-2023-2024学年高二数学同步精品课堂(人教A版2019选择性必修第三册)(已下线)8.2 一元线性回归模型及其应用——随堂检测(已下线)8.2 一元线性回归模型及其应用(6大题型)精练-2023-2024学年高二数学题型分类归纳讲与练(人教A版2019选择性必修第三册)
7 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff2567f2745958d155561723a7e071a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
(1)求曲线
在
处的切线方程![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32ca6fa9955690cec01db601e3abce0c.png)
(2)若函数
在区间
上恰有两个不同的零点,求实数
的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff2567f2745958d155561723a7e071a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32ca6fa9955690cec01db601e3abce0c.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8263a5d5f0d9f2101a23efbc49f69e6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73f0a7f52eb82472cce50381cbed1c16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
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解题方法
8 . 双曲线
的离心率是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e0d01b6ce8627fe4baecb1ba703a305.png)
您最近一年使用:0次
2024-02-04更新
|
367次组卷
|
2卷引用:宁夏石嘴山市第三中学2023-2024学年高三上学期期中考试文科数学试卷
名校
解题方法
9 . 已知函数
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/26/a86fa5f6-948b-43df-ba0d-789d64b67039.png?resizew=213)
(1)在所给出的坐标系中画出
的图象;
(2)解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64a7b99954b553ca778cb4690f934d26.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/26/a86fa5f6-948b-43df-ba0d-789d64b67039.png?resizew=213)
(1)在所给出的坐标系中画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2ece022365a4c9d4a68e16157f3137a.png)
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10 . 设
,
,
,
是4个正整数,从中任取
个数求和所得的集合为
,则这
个数中最小的数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c25fc6a69d6d0ccfb8d839b9b4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/365b38a7689a8eede6820cd6f1fe952b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13e9563fed3c907f7bdfd640c93251c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
A.4 | B.6 | C.8 | D.10 |
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