1 . 国家二级文化保护遗址玉皇阁的台基可近似看作上、下底面边长分别为
,
,侧棱长为
的正四棱台,则该台基的体积约为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f71a41641aa0d0e45a3c03d3d2c1196b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e7854968bbf6576a1fd9926ee0d4d63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f36b51b654efcff60d2d640b9b4c4471.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3卷引用:江苏省南通市如皋中学2024届高三下学期高考适应性考试(三)(3.5模)数学试题
2 . 计算:
的结果是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42c874089ab94b6a2816da7ad3cfec31.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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3卷引用:江苏省南通市海安高级中学2023-2024学年高一下学期第二次月考数学试题
3 . 已知球的半径为1,其内接圆锥的高为
,则该圆锥的侧面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
4 . 在梯形
中,
,且
,点
是
的中点,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10df84d553a8826a7ce9bff4bf0d95b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12143a06ed24558d8cc7ad39961d3e1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98ce0da153621bbd05519f168b527e3e.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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5 . 已知定义在
上的函数
满足
,则不等式
的解集为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08bf0e426e0d6f14ff67f756ee2cdda9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cab5b63136e3f15ed46c1aa1e079e36.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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6 . 如图,已知在矩形
中,
,点
是边
的中点,
与
相交于点
,现将
沿
折起,点
的位置记为
,此时
,则二面角
的余弦值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cd4fb83908d0cabf3cc17ea6ce4a3c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b3bd5e6bc2a0a277d279bb01af9584.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d30374a2dad85e336ceaa462be7e00e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d7f66b146fccec50efa1c316aa1afe0.png)
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2024-06-17更新
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2卷引用:江苏省南通市海安高级中学2023-2024学年高一下学期第二次月考数学试题
名校
解题方法
7 . 若
、
是两个不重合的平面:①若
内的两条相交直线分别平行于
内的两条直线,则
;②设
、
相交于直线
,若
内有一条直线垂直于
,则
;③若
外一条直线
与
内的一条直线平行,则
.以上说法中成立的有( )个
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/202af51f5ebe87ec0017f439a6ad7fbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5986f2991d45fbf3578f08f27d9fd7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f236f93b96ed780adb8a79e473efefd.png)
A.0 | B.1 | C.2 | D.3 |
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2024-06-17更新
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2卷引用:江苏省南通市海安高级中学2023-2024学年高一下学期第二次月考数学试题
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8 . 为获得某中学高一学生的身高(单位:
)信息,采用随机抽样方法抽取了样本量为50的样本,其中男女生样本量均为25,计算得到男生样本的均值为176,标准差为10,女生样本的均值为166,标准差为20.则总样本的方差为__________
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efa9fbcfb9595e2f031aa691db4564b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88ce13774b09ff2edddaf21a072cf60a.png)
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2卷引用:江苏省南通市海安高级中学2023-2024学年高一下学期第二次月考数学试题
9 . 设
,已知向量
与
的夹角为
,
,
,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13e87088da41685cc8d433fbbe0e18d6.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/15615de1a6df206dbd081251f676578e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e7f14dfa9f463d57664c640102bb5b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05c987ce513e8ec4428df22e284cbf4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/972cbba93f6ac907874a6c8db6e5f3e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
A.![]() | B.![]() | C.2 | D.![]() |
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10 . 某工厂生产
三种不同型号的产品,产量之比为2:3:5.现用分层抽样的方法抽取1个容量为
的样本,若样本中
种型号的产品有16件,则样本容量
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
A.40 | B.60 | C.80 | D.100 |
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