名校
解题方法
1 . 某学校有
,
两家餐厅,经统计发现,某班学生第1天午餐时选择
餐厅和选择
餐的概率均为
.如果第1天去
餐厅,那么第2天去
餐厅的概率为
;如果第1天去
餐厅,那么第2天去
餐厅的概率为
,则某同学第2天去
餐厅用餐的概率为________ ;假设班内各位同学的选择相互独立,随机变量
为该班3名同学中第2天选择
餐厅的人数,则随机变量
的均值![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5b9249c10ae3896e2ee96bfa1a153e5.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eac97e6740365c85ad857aff85cefbe5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7294f5ae2a24ff42e84cd9773b2a7287.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5b9249c10ae3896e2ee96bfa1a153e5.png)
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名校
2 . 公差大于零的等差数列
中,
,
,
成等比数列,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/715aaa320d35fd92b2dcd9573ab8b489.png)
_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f65fc200f10b97588a0c9896277c9c64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d33ec7236bccfedbe3baefd35e45f1e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e84c30444f13d37ada78285dc4f83b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1928c254cfada1f75a5cd1e34db5a63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/715aaa320d35fd92b2dcd9573ab8b489.png)
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3 . 已知过球面上A、B、C三点的截面和球心的距离等于球半径的一半,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff05200a938f498c63e4f202c73c1844.png)
,则球的表面积为____________ ,球的体积为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff05200a938f498c63e4f202c73c1844.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37c225bd7641e3c02c1c3bdd0cd33673.png)
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名校
4 . 已知点
,则
在
上的投影向量为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f2a5061add4c0fe39cec4c69e5e4998.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcb5d89b04570ceda2c29e11cb27a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89265cbe3abc6b966ce8967fead448b.png)
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名校
5 . 设定义在
上的函数
,满足
,
为奇函数,且
,则不等式
的解集为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d752d8db8a05b3ec7312f6ac8b64a07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ff6447be6d6b71691c820af827cc016.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2dfc24170f38db88375e26e207abe6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8721817c576462be2ba92469de740ae.png)
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2024-05-11更新
|
495次组卷
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3卷引用: 天津市第四十七中学2023-2024学年高二下学期5月期中数学试题
天津市第四十七中学2023-2024学年高二下学期5月期中数学试题江苏省苏州实验中学2023-2024学年高二下学期5月月考数学试题(已下线)专题08 导数的运算、几何意义及极值最值常考题型归类--高二期末考点大串讲(人教B版2019选择性必修第三册)
名校
6 . 在
的展开式中,
项的系数为________ .(用数字作答)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e00d856ca2116bafde36d2514a5b4ed4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d800f03de80068a1172beac3a2c75587.png)
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2卷引用:天津市第四十七中学2023-2024学年高二下学期第二次阶段性检测(6月)数学试题
名校
7 . 已知
与
为互相垂直的单位向量,
,
,且
与
的夹角为钝角,则实数
的取值范围是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bf2a896afb91ca06b513acd1a73bb83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/821a7c2e810ef18a2ee78f3722f03c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1415bd524e4c3f8a5b5a15df349acc5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e973c386d572c5fce7fabe26fca0b930.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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2024-05-09更新
|
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|
3卷引用:天津市第四十七中学2023-2024学年高一下学期5月期中考试数学试题
名校
解题方法
8 . 分别从
和
中各任取2个数字组成一个没有重复数字的四位数,这样的四位数共有__________ 个.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90dc89ad54f901a770a8a3cd21561d4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94638e22c7b651217bf64c33e7f5cb1a.png)
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2024-05-07更新
|
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3卷引用:天津市第四十七中学2023-2024学年高二下学期第二次阶段性检测(6月)数学试题
天津市第四十七中学2023-2024学年高二下学期第二次阶段性检测(6月)数学试题四川省南充高级中学2023-2024学年高二下学期4月期中考试数学试题(已下线)专题01 高二下期末真题精选(1)--高二期末考点大串讲(人教A版2019)
名校
解题方法
9 . 在四边形
中,
为
中点. 记
,用
表示![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d1b000652db5cf562b3e0711f6a6b7a.png)
_____________________ ;若
,则
的最大值为_____________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edd42eac2cb4bb4e7251d827b2f93673.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/839cf5442da5ff03b4a6224cad15e0ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e8b95a61af300412fc65f846089028.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d1b000652db5cf562b3e0711f6a6b7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2730fe45a7466c90a4c89a91588aed46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f5c1b8d4b3d9168a5020c61af5c2b2e.png)
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3卷引用:天津市北辰区朱唐庄中学2024届高三模拟预测数学试题
名校
10 . 设
,函数
,若函数
恰有4个零点,则实数
的取值范围为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e37c35e33ffa1a55a0693ae2319da91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/627cd24f63d5c5987cb718e6eddfe6c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1a576992d969ed5d63a8f77af2c7edc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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|
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4卷引用:天津市第四十七中学2023-2024学年高二下学期第二次阶段性检测(6月)数学试题
天津市第四十七中学2023-2024学年高二下学期第二次阶段性检测(6月)数学试题天津市八校2023-2024学年高三下学期联合模拟考试数学试题(二)(已下线)第25题 函数方程是“近亲”,以形助数传“佳话”(优质好题一题多解)(已下线)专题6 函数的零点问题(过关集训)(压轴题大全)