名校
1 . 已知一组样本数据
,
,
,
,其中
,若由
生成一组新的数据
,
,
,
,则这组新数据与原数据可能相等的量有( )
![](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/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35fe7e11d87d56363a62a25bcf9ea590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f92051236b406fbc01c0ae3ed923e35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c01ce419e988f1300ddf5db81c3a198.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a79b9eaa5e7ab7a1e5c512b571914dc8.png)
A.极差 | B.平均数 | C.中位数 | D.标准差 |
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2024-02-12更新
|
618次组卷
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6卷引用:重庆市缙云教育联盟2024届高三下学期3月月度质量检测数学试题
重庆市缙云教育联盟2024届高三下学期3月月度质量检测数学试题江苏省常州市2023-2024学年高三上学期期末学业水平监测数学试卷江苏省南京市金陵中学2024届高三上学期期末模拟数学试题(已下线)第5套 全真模拟篇5复盘卷(已下线)第五套 复盘卷(2月开学考试)(已下线)9.2.4总体离散程度的估计(分层练习)-【上好课】(人教A版2019必修第二册)
名校
解题方法
2 . 已知集合
,
.
(1)当
时,求
;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/723a66a9078ef914a51745bdfdb8cdc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bb50cb373fe922ed5111b0d2567d838.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d89504e77251a53877e41b64cb5c943d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04ceb1f338fa60976229d7ec6531b626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2024-02-11更新
|
456次组卷
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2卷引用:重庆市部分区2023-2024学年高一上学期期末联考数学试题
3 . 已知函数
.
(1)求
的最小正周期;
(2)讨论
在
上的单调性.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cc0afde68848a8c508051fd5f301e5e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb8a6bc34a61595f56e2c5fc594d0475.png)
您最近一年使用:0次
名校
4 . 如图1所示,四边形
中,
,
,
,
,
,点M为
的中点,点N为
上一点,且
,现将四边形
沿
翻折,使得
与
重合,得到如图2所示的几何体
,其中
.
(1)证明:
平面
;
(2)若点P是棱
上一动点,当二面角
的正弦值为
时,试确定点P的位置.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f571396be1aa4a8914a66f7d7abd6381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc11331a7b2d2619b40ee6d34c3bd620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07160f14b3b453bebb64cb2bf96dc85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7605ce6f221ce8cad191da0f84a216d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e53abbd672b82a02c4975f99fbbd2c37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d57a6416245c80af20842ebde5aa32b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76c8ed20e806e8acda5b16f97345e5a8.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f30533da2e1d2a958dc906c37eba9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c365c269aaa5a59a35884ad65507bdc1.png)
(2)若点P是棱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/735056c174e8dd7906257a2a50a962a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0a3e7730e98d2af874d11664a5d084b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827ccf0c04aa941ba20d5f4c6068b46b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/8/d5cfc656-f71c-4d1e-911a-9e138a5a75c2.png?resizew=343)
您最近一年使用:0次
名校
解题方法
5 . 已知函数
的部分图像如下,则下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/8/398daaff-e538-45eb-be4c-4fa81dab0b33.png?resizew=166)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2c661a7680443c55ee3aa8b86548cc3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/8/398daaff-e538-45eb-be4c-4fa81dab0b33.png?resizew=166)
A.![]() ![]() |
B.![]() ![]() |
C.![]() |
D.若方程![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
6 . 在平行四边形
中,
,
,
,
分别为
,
的中点,将
沿直线
折起,构成如图所示的四棱锥
,
为
的中点,则下列说法不正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abc28e69c1ba0aac981256887f7dfa94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64d185e7050dcf0d8c3a5532e44c68bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff5969b17ef2f4d4798e7524bbd86d6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b17288da70b31823293794cb289e3123.png)
A.平面![]() ![]() |
B.四棱锥![]() ![]() |
C.无论如何折叠都无法满足![]() |
D.三棱锥![]() ![]() |
您最近一年使用:0次
2024-02-08更新
|
921次组卷
|
5卷引用:重庆市渝北中学校2023-2024学年高三下学期5月月考质量监测数学试题
重庆市渝北中学校2023-2024学年高三下学期5月月考质量监测数学试题山西省临汾市2024届高考考前适应性训练考试(一)数学试题(已下线)第5讲:立体几何中的动态问题【练】(已下线)信息必刷卷02宁夏回族自治区银川一中2024届高三第二次模拟考试文科数学试题
7 . 数学家也有许多美丽的错误,如法国数学家费马于1640年提出了以下猜想:
是质数.直到1732年才被善于计算的大数学家欧拉算出
,不是质数.现设
,数列
的前
项和为
,则使不等式
成立的正整数
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ac3125137db2340e4809e3b171d4bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30ac5abd893e2158c86f56e697f452ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce78f685d319599074493bcf6238dd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.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/c44e32a7764f2b393d0d265aea9b0302.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
A.11 | B.10 | C.9 | D.8 |
您最近一年使用:0次
2024-02-08更新
|
986次组卷
|
7卷引用:重庆市七校联盟2024届高三下学期第一次月考数学试题
重庆市七校联盟2024届高三下学期第一次月考数学试题陕西省咸阳市2024届高三上学期模拟检测(一)文科数学试题(已下线)第4讲:数列中的最值问题【练】(已下线)思想02 运用数形结合的思想方法解题(4大核心考点)(讲义)山东省德州市第一中学2023-2024学年高二下学期3月月考数学试题山东省德州市夏津县第一中学2023-2024学年高二下学期3月月考数学试题四川省成都市第十二中学2023-2024学年高二下学期3月月考数学试题
名校
解题方法
8 . 已知椭圆
的左、右焦点分别为
、
,上项点为B,直线
与椭圆C相交于M、N两点,点
,则下列选项正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4129f43a6af21631251511e63e2ac4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ca8b6ac96dfe0046b7ca1745176ca22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f7a7f7adf8d562f63e2019fa4a859a4.png)
A.四边形![]() |
B.当![]() ![]() ![]() |
C.直线![]() ![]() ![]() |
D.若点P为椭圆C上的一个动点,则![]() ![]() |
您最近一年使用:0次
解题方法
9 . 已知
是椭圆
的左焦点,过椭圆上一点P作直线与圆
相切,切点为Q,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fdd1989149897babe496145a3812e49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6316e0e6da742e9b035d8f2cc91a4dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79ba6afb68cd86af6e0632ab7e0fe995.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-02-07更新
|
346次组卷
|
2卷引用:重庆市2023-2024学年高二上学期1月期末考试数学试题
名校
10 . 如图,在直三棱柱
中,
,
,
,点M、N分别为
和
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/7/c3f75a32-d2cb-427d-811d-4b020874c32b.png?resizew=159)
(1)求异面直线
与
所成角的余弦值;
(2)证明:
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71f2185273bf04c11118c7954f7ec822.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c4559d27e3905980d1a4f1856f07de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c3e9ef3e849788645552cfb0735d987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7479255f54d51b97e6314db1dc06eb22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e663220a66eff19da6a71e46b397db2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e737bc35da650eda3825d29799b5f86f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/7/c3f75a32-d2cb-427d-811d-4b020874c32b.png?resizew=159)
(1)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/167d31eb8432b5c0364316e5048c23dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e663220a66eff19da6a71e46b397db2e.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7592c4f01c8e06c7ee90df5b9413a9f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a06faea49d957a5bab3fe0582f76ff23.png)
您最近一年使用:0次