1 . 已知无穷数列
,构造新数列
满足
,
满足
,
,
满足
,若
为常数数列,则称
为
阶等差数列;同理令
,
,
,
,若
为常数数列,则称
为
阶等比数列.
(1)已知
为二阶等差数列,且
,
,
,求
的通项公式;
(2)若
为
阶等差数列,
为一阶等比数列,证明:
为
阶等比数列;
(3)已知
,令
的前
项和为
,
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22e75bf99dcb0fe32f66fa90a74f9a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dc06ff2f65c456efb6a114e67b62cb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d16e3ca4fb65342b0e9a0594d661ba3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaf623a6dd661f87cf64ea150072fd78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcbdf91bb5a49f293f9b52ac8dcfa35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdc2b6b23da3e065820c15cf6c675e20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce1ca0ac3789432a3d1ce975a9a6f4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23ab5abd104649f9a3c231df9a55813a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce1ca0ac3789432a3d1ce975a9a6f4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69c653f3a05dd25f6affdba7baeab38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f0606df3b6fbc6fcf863f9c59e0e54f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdc2b6b23da3e065820c15cf6c675e20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab214e5f34d976717284bed52c645e10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/020e796a0144ff9b3329c7064a01c5c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18d8e8f821111de8075e5c3dfb22a5d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56a4b318fa151fab14b3857942ed3cb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f329b217e1051b23f0d61023cdc6e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07418f1fa0f6569b50944b5a13ffa021.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b00f4eb7f1bd2ccefbabf0c1dfa8f69.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e7778648d93a10ed66ddd99672d3ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a77316e06c00a9086be642f7f590684.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2a5a414f3f5d724058a2e887f3d1c0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c3fec47d2dd2b8099d86c87b6e57de8.png)
您最近一年使用:0次
2 . 已知
,动点
满足
,动点
的轨迹为曲线
交
于另外一点
交
于另外一点
.
(1)求曲线
的标准方程;
(2)已知
是定值,求该定值;
(3)求
面积的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/107a80eeecf2efcb25cb008945c1c241.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cced7a3d18b398c1da1218d74a96542.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81ac4aa6db80d4edfd287abc4580e68b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f09757d013574cf058d5bb944fdf034a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c72be8e3e113103ca7de54ac39c2313.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f09757d013574cf058d5bb944fdf034a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f09757d013574cf058d5bb944fdf034a.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da79ae7251aa6d5822b5396a632b01c7.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c28abb154f41e1ca9816c9c9c2433ca.png)
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7日内更新
|
612次组卷
|
3卷引用:浙江省宁波市镇海中学2024届高三下学期适应性测试数学试卷
3 . 如图,在矩形ABCD中,
,
,对角线AC、BD相交于点O,动点P、Q分别从点C、A同时出发,运动速度均为1cm/s,点P沿
运动.到点B停止,点Q沿
运动,到点C停止. 连接
,设
的面积为
(这里规定:线段是面积为0的几何图形),点Q的运动时间为x(s).
时,求x的值;
(2)当
时,求y与x之间的函数关系式;
(3)直接写出在整个运动过程中,使
的所有
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ee5bd6f04872ef8d3d833d0e2056161.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e40cc1f35e71e2abf5943a21fe448df4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82baca47182531f9f2135ef3056cc1ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3087da5c11909dab613378fee8d471fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31ed47b8230bc383b2c167264f750d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9763846b1131e1e3e2d741ad95d5bb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/012b14b48c09eb820c49c13dccb642bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b10bb426e00de29d8664ca5babb2f4f3.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fc1a1c6781dc4554c47e2affb00405c.png)
(3)直接写出在整个运动过程中,使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34ecd96adaec63c5bbd65f59f885ecfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
名校
4 . 已知函数
,函数
.
(1)若
,求
的值域;
(2)若
:
(ⅰ)解关于
的不等式:
;
(ⅱ)设
,若实数
满足
,比较
与
的大小,并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b25d5c7479bf62d5c9fc71bf46b56866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd6cc4bdc89f1475cd1b3e21808ff6a3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd876a2ed79c64bacc3e64b8ee92735e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b77589ec03475a3a653d684f6f23b467.png)
(ⅰ)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa18838a13fda4e45612c32cdf98b71.png)
(ⅱ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/360ff131c51a4ef6745538c18cec92c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/604be3e10ddd5e520c921a8e5ab923e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a99a77bd57c52838c723803db147e17d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ca8b26c3ad6d892590290a2304126bd.png)
您最近一年使用:0次
名校
解题方法
5 . 球面几何学是在球表面上的几何学,也是非欧几何的一个例子.对于半径为R的球
,过球面上一点
作两条大圆的弧
,
,它们构成的图形叫做球面角,记作
(或
),其值为二面角
的大小,点
称为球面角的顶点,大圆弧
称为球面角的边.不在同一大圆上的三点
,可以得到经过这三点中任意两点的大圆的劣弧
,这三条劣弧组成的图形称为球面
,这三条劣弧称为球面
的边,
三点称为球面
的顶点;三个球面角
称为球面
的三个内角.
的单位球面上有不同在一个大圆上的三点
.
(1)球面
的三条边长相等(称为等边球面三角形),若
,求球面
的内角和;
(2)类比二面角,我们称从点
出发的三条射线
组成的图形为三面角,记为
.
其中点
称为三面角的顶点,
称为它的棱,
称为它的面角. 若三面角
的三个面角的余弦值分别为
.
(ⅰ)求球面
的三个内角的余弦值;
(ⅱ)求球面
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/667349d99185bb045030b733352ff7fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdcdeb8eb2d5a8a7f1c81071ae349504.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f2dcc2105ebb1c89bfb1572a7e076e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a19c1bcb8431ae315ecd29c6478d3eff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ef528373d472534670a8fd7fb301492.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a1b98b1478ed9480a9e1a62ec3b82da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e037d52e5d75070cd02df4727b5922d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
(1)球面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814dc3914cdf4d5af2f4cfadf41c260.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)类比二面角,我们称从点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f673831a6738e1c317fede2920436d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5de938433cfaf25cb38dd5c9d915bb2b.png)
其中点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f673831a6738e1c317fede2920436d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c93fa5e252ef36adfbffa39410f2b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4278c0911e7df78965e78cff69cac5f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27029c4cc0fe55c8f4dbdb33beca9980.png)
(ⅰ)求球面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(ⅱ)求球面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
名校
解题方法
6 . 为贯彻落实党的二十大关于深化全民阅读活动的重要部署,进一步推动青少年学生阅读深入开展,促进全面提升育人水平,教育部决定开展全国青少年学生读书行动.某校实施了全国青少年学生读书行动实施方案.现从该校的2400名学生中发放调查问卷,随机调查100名学生一周的课外阅读时间,将统计数据按照
,
,…
分组后绘制成如图所示的频率分布直方图(单位:分钟)
(2)估计该校学生每周课外阅读的平均时间;
(3)估计该校学生每周课外阅读时间的第75百分位数(结果保留1位小数).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4acbaeadf61db4e664c4d2b4ca3697c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5641c24ea477f7bea0bc891fbd12043e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/865a47ada5a00b762f75b39c295d85d3.png)
(2)估计该校学生每周课外阅读的平均时间;
(3)估计该校学生每周课外阅读时间的第75百分位数(结果保留1位小数).
您最近一年使用:0次
解题方法
7 . 已知双曲线
,上顶点为
,直线
与双曲线
的两支分别交于
两点(
在第一象限),与
轴交于点
.设直线
的倾斜角分别为
.
(1)若
,
(i)若
,求
;
(ii)求证:
为定值;
(2)若
,直线
与
轴交于点
,求
与
的外接圆半径之比的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7bcb34ed3bf1981b04d07b53030264.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/342ba1917a6b854ad111a3e6f5514934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24d5467e6dd66a263e3b8607385c2acf.png)
(i)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71885f023172807ad43f2c9a670aa960.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
(ii)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8dc4c63a548b91061528aa11058de75.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/093c05ac99b784f79ab03edb81bdc8c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/554bc87180cd813a4c5d4eb88996d089.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/847a4906dd3bb720f3c340cea2d297dc.png)
您最近一年使用:0次
8 . 指示函数是一个重要的数学函数,通常用来表示某个条件的成立情况.已知
为全集且元素个数有限,对于
的任意一个子集
,定义集合
的指示函数
若
,则( )
注:
表示
中所有元素
所对应的函数值
之和(其中
是
定义域的子集).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b52b4f24969673c863b5aff4fb6751ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b52b4f24969673c863b5aff4fb6751ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c37959331f824e0153871d62a13cb30e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c85325300b6ce106910cc9e758b56e6b.png)
注:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2059b60ca47a69612f16e1a3f63d8cf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
A.![]() |
B.![]() |
C.![]() |
D.![]() |
您最近一年使用:0次
2024-04-18更新
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1195次组卷
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3卷引用:浙江省宁波市2023-2024学年高三下学期高考模拟考试数学试题
2024·全国·模拟预测
名校
解题方法
9 . 将氢储存在甲基环乙烷和甲苯等有机液体中是储氢和运输氢的重要方向.2023年12月俄罗斯科学院西伯利亚分院科研人员用镍和锡取代铂,研发出一种新型高效的脱氢催化剂,脱氢效率达
,且对储氢载体没有破坏作用,可重复使用.近年来,我国氢能源汽车产业迅速发展,下表是某市氢能源乘用车的年销售量与年份的统计表:
(1)求氢能源乘用车的销量
关于年份
的线性回归方程,并预测2024年氢能源乘用车的销量;
(2)为了研究不同性别的学生对氢能源的了解情况,某校组织了一次有关氢能源的知识竞赛活动,随机抽取了男生和女生各60名,得到如表所示的数据:
(ⅰ)根据已知条件,填写上述
列联表;
(ⅱ)依据
的独立性检验,能否认为该校学生对氢能源的了解情况与性别有关?
参考公式:1.回归方程
中斜率和截距的最小二乘法估计公式分别为
;
2.
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc3e36a8ddec055b2164ae365daf1326.png)
年份![]() | 2018 | 2019 | 2020 | 2021 | 2022 |
销量![]() | 2 | 3.5 | 2.5 | 8 | 9 |
(1)求氢能源乘用车的销量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)为了研究不同性别的学生对氢能源的了解情况,某校组织了一次有关氢能源的知识竞赛活动,随机抽取了男生和女生各60名,得到如表所示的数据:
了解 | 不了解 | 合计 | |
男生 | 25 | ||
女生 | 20 | ||
合计 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b72fcdc709e77910cd36a26369648b3.png)
(ⅱ)依据
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bdaf501302beeec9d077be02909e3bd.png)
参考公式:1.回归方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1db6103cb0f1d2bd6b19235d53ee7e98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8f623b4cc87edcbb4cdbcd88ad8d115.png)
2.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b817ac9b8621e40bfa3945e68489c282.png)
![]() | 0.050 | 0.010 | 0.001 |
![]() | 3.841 | 6.635 | 10.828 |
您最近一年使用:0次
2024-04-07更新
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658次组卷
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5卷引用:浙江省宁波市北仑中学2023-2024学年高二下学期期中考试数学试题
浙江省宁波市北仑中学2023-2024学年高二下学期期中考试数学试题(已下线)高三数学临考冲刺原创卷(六)(已下线)第八章 成对数据的统计分析总结 第三练 方法提升应用(已下线)专题8.6 成对数据的统计分析全章八大压轴题型归纳(拔尖篇)-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)单元测试B卷——第八章 成对数据的统计分析
名校
解题方法
10 . 某羽毛球俱乐部,安排男女选手各6名参加三场双打表演赛(一场为男双,一场为女双,一场为男女混双),每名选手只参加1场表演赛,则所有不同的安排方法有( )
A.2025种 | B.4050种 | C.8100种 | D.16200种 |
您最近一年使用:0次
2024-03-31更新
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2545次组卷
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8卷引用:浙江省宁波市北仑中学2023-2024学年高二下学期期中考试数学试题
浙江省宁波市北仑中学2023-2024学年高二下学期期中考试数学试题浙江省9+1联盟2023-2024学年高三下学期3月高考模拟数学试卷(已下线)高二 模块3 专题1 第3套 小题进阶提升练(已下线)高二 模块3 专题1 第3套 小题进阶提升练(苏教版)四川省眉山市仁寿第一中学校南校区2023-2024学年高二下学期4月数学滚动检测卷湖北省鄂州鄂南高中2024届高三下学期高考模拟考试(一)数学试卷广东省深圳市2024届高三下学期三模数学试题江苏省盐城中学2023-2024学年高二下学期5月阶段性质量检测数学试题