1 . 已知函数
,则下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/514df790653cf281af6323d283f72acd.png)
A.若![]() ![]() ![]() |
B.若![]() ![]() |
C.存在![]() ![]() |
D.若![]() ![]() ![]() |
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解题方法
2 . 已知定义在
上不为常数的函数
满足
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2628e2dd7a988cc80530e739c22b2280.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1273c46b7fcc753edffec8da083f60b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
3 . 在棱长为2的正方体
中,
为
的中点,以
为原点,OB,OD,OO1所在直线分别为
轴、
轴、
轴,建立如何所示空间直角坐标系.若该正方体内一动点
,满足
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22a20b689283cc8b311eddae4c8c4242.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49ea83a384f056dadaacfa349cc84130.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](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/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bfcaf2a345411411cf94422703e9269.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e588cb555e36f28c5db66d213ef064d4.png)
A.点![]() ![]() | B.![]() ![]() |
C.![]() | D.三棱锥![]() ![]() |
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4 . 一只口袋中装有形状、大小都相同的6个小球,其中有红球1个,黑球2个,白球3个,分别从中两种不同方式摸出3个球,方式一:依次有放回:方式二:依次无放回.则( )
A.按方式一,则摸出是同一种颜色球的概率为![]() |
B.按方式一,设摸出黑色球的个数为X,则方差![]() |
C.按方式二,已知共有两种不同颜色的球的条件下,则2白1黑的概率为![]() |
D.若按方式一、二等可能,抽签决定,则最终摸出2白1黑的概率为![]() |
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解题方法
5 . 已知正方体
的棱长为1,点
在线段
上,过
作垂直于
的平面
,记平面
与正方体
的截面多边形的周长为
,面积为
,设
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe734023d4e70010a6b2cc3267cb86e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe734023d4e70010a6b2cc3267cb86e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b658f610333d2cd189b8aaff108300f4.png)
A.截面可能为四边形 |
B.![]() ![]() |
C.![]() ![]() ![]() |
D.![]() ![]() ![]() |
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6 . 在棱长为2的正方体
中,点
满足
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/167c13c894f6d448cda166ac5f2a81e7.png)
A.当![]() ![]() ![]() ![]() |
B.任意![]() ![]() |
C.存在![]() ![]() ![]() ![]() |
D.当![]() ![]() ![]() |
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7 . 在棱长均为1的三棱柱
中,
,点
满足
,其中
,则下列说法一定正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b11a79894447b31c2ca1163bc304871.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d051546c15ec453fc53a6de2774b414.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1ccdad989ebe7c7087be45cd0683a3.png)
A.当点![]() ![]() ![]() |
B.当![]() ![]() ![]() |
C.当点![]() ![]() ![]() |
D.当![]() ![]() ![]() ![]() |
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8 . 在探究
的展开式的二项式系数性质时,我们把二项式系数写成一张表,借助它发现二项式系数的一些规律,我们称这个表为杨辉三角(如图1),小明在学完杨辉三角之后进行类比探究,将
的展开式按x的升幂排列,将各项系数列表如下(如图2):
表示,即
展开式中
的系数为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9216a0f9d6e65ea4937ab7bf102c5db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/affdb56951c1eb5c394817b973cf4434.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b87d2924395caf206ff6e6692c3cd0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/affdb56951c1eb5c394817b973cf4434.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fdf138124aba5204739cafbf1b59d47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d83651456ad892247ebda19d98c40e9c.png)
A.![]() |
B.![]() |
C.![]() |
D.![]() |
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2024-05-11更新
|
302次组卷
|
3卷引用:江苏省海门中学2023-2024学年高二下学期5月学情调研数学试卷
名校
解题方法
9 . 如图,在棱长为1的正方体
中,
为平面
内一动点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
A.若![]() ![]() ![]() ![]() |
B.平面![]() ![]() |
C.若![]() ![]() ![]() ![]() |
D.对于给定的点![]() ![]() ![]() ![]() |
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2024-04-18更新
|
1690次组卷
|
3卷引用:江苏省扬州中学、盐城中学、淮阴中学、丹阳中学四校2023-2024学年高三下学期调研测试联考数学试卷
名校
10 . 如图,在棱长为2的正方体
中,已知
,
,
分别是棱
,
,
的中点,点
满足
,
,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f36a6370254d829ad191cb5727ea32f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79296cd4046a71e163a8f3e647a176ae.png)
A.![]() ![]() |
B.若![]() ![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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2024-04-11更新
|
1198次组卷
|
5卷引用:江苏省南菁高级中学2023-2024学年高一下学期5月月考数学试题