解题方法
1 . 若函数
在区间
上单调递增,则k的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53e90a7e13e29faa5acd0ef63dece869.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3741faf608b0cb549d852b1037d0046c.png)
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解题方法
2 . 若球的表面积为
,则该球的半径是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20b3a91ccf6028608cd03df7072f6536.png)
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3 . 函数
的最小值是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a81c8656a416ea0bff100550fd13fddd.png)
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4 . 在
中,已知
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c885e8032706feed854495e0f608aa04.png)
______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7788830ed1cb3b9c5988f70f43595f2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1682d306c38087d9e6f7efb9cec596a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c885e8032706feed854495e0f608aa04.png)
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5 . 已知
分别为
三个内角
的对边,若
,
,则
= ____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21d1c4fad618c205ccfa186c91caf28c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b0ba5c937b27a27b5ef5ab9e51a935.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6402f1010e94be78552ed4c45548b1b8.png)
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2023-06-25更新
|
1260次组卷
|
3卷引用:福建省普通高中2022-2023学年高二6月学业水平合格性考试数学试题
6 . 敬骅小区共有100名住户,该小区用电量千瓦时(kW·h)频率分布表如下表所示.求
的户数 ____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca66d78ee7fd52d4521ebdd40c54e815.png)
频率/组距 | 用电量 |
0 | (0,50] |
0.0024 | (50,100] |
0.0036 | (100,150] |
0.0056 | (150,200] |
0.0042 | (200,250] |
0.0030 | (250,300] |
0.0012 | (300,350] |
您最近一年使用:0次
2023-06-25更新
|
663次组卷
|
3卷引用:福建省普通高中2022-2023学年高二6月学业水平合格性考试数学试题
7 . 已知
为虚数单位,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bffa280fa7d12e86e6636c39d157d8a4.png)
____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bffa280fa7d12e86e6636c39d157d8a4.png)
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8 . 已知
,
,若A,B相互独立,则
= ____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7cad5ef24e21a82689475d1f75c2165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6060803bd5937e7e4af508258797c80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eb6b15808a7b7b8b6ca7e5f7b352657.png)
您最近一年使用:0次
2023-06-25更新
|
828次组卷
|
3卷引用:福建省普通高中2022-2023学年高二6月学业水平合格性考试数学试题
名校
9 . 已知当
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ba429b243f5834f50a0ad56e9ecc9db.png)
______ ;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d971e248bd035650f7fc77adaea2ba1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ba429b243f5834f50a0ad56e9ecc9db.png)
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2023-06-11更新
|
581次组卷
|
3卷引用:福建福州延安中学2022-2023学年高二下学期学业水平考试数学模拟试题
10 . 已知
为虚数单位,计算![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4e9b86449ea80f21811bb4ad5cb9b25.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/579743813856e2a9183f5ec6eaaefbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4e9b86449ea80f21811bb4ad5cb9b25.png)
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