名校
解题方法
1 . 随机变量X服从正态分布,若
,则
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昨日更新
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225次组卷
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2卷引用:江西省新余市实验中学2023-2024学年高二下学期第一次月考复习数学试题
2 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dbd9ff686703cad03aa383e5fec21.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2be5acfcb74659c7b97c011e0e6ffbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dbd9ff686703cad03aa383e5fec21.png)
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3 . 某儿童游乐场有一台打地鼠游戏机,共有9个洞.游戏开始后,每次有且仅有一只地鼠从某洞中冒出,地鼠第1次从1号洞冒出来.假设游戏过程中地鼠从上一个洞继续冒出的概率为
,从其它洞冒出的可能性相等,则地鼠第3次从1号洞冒出的概率是__________ .假设游戏结束时,地鼠一共冒出
次,则地鼠从1号洞冒出的次数期望值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ffd5c35bba71ea54c28622b6cf505d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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解题方法
4 . 设直线
的方向向量为
,平面
的法向量为
,则直线
与平面
所成角的大小为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/586df0db33bce54b84db87f068365e39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a49f411ec77b1785ff8300606e7c266.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
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5 . 设
是
的导函数,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1c2a4ee0c1c227233403984545807fd.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c80766f2ede363288e0908cdd2a945a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1c2a4ee0c1c227233403984545807fd.png)
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解题方法
6 . 已知向量
,
满足
,向量
在
上的投影向量为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba3c6bd21d9c27a68b970f446f04d6df.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2396cac4b185cf1f1a67dad9248481c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81cdfd82868aefda05f52913dfd762a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba3c6bd21d9c27a68b970f446f04d6df.png)
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7 . 某新能源汽车
店五月份的前8天汽车销量(单位:辆)分别为:
,则这组数据的
分位数为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/943479b2b06001e644d9274bff1aa13a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b5c16f0144403ac80b733c98cbe49a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06b140062c06ce287ca862555287e3d1.png)
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8 . 已知函数
,令
,
,若
,则
的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0b47d4c5d3ddd3ce7f949670d36f974.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6fc51ae6ba348d0e4d3765a4818406e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6984d11b79b3b4222178dec44c0e4288.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad3bd164f5ace47e6c9fa4c2a4e7c4ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59993bee84d6bb8666ae9a8cd433d51c.png)
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9 . 已知
,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c785ad47058eb2125253e0aa4ced2750.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf490c4806005987640652a36f0b35ad.png)
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2024-06-09更新
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747次组卷
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2卷引用:江西省赣州市2023-2024学年高三下学期5月适应性考试数学试题
10 . 设函数
的导数为
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1756433c66dfecdc923053909302a56d.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4b04824a308519a61318a82aa97a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06ce0eb8b792b25b542186d130fb61e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1756433c66dfecdc923053909302a56d.png)
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