1 . 设f(x)是定义在(0,+∞)上的单调函数,对任意x>0有f(x)>
,则f(8)=_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92c09443f0875afbb6c95a116e56a17f.png)
您最近一年使用:0次
2 . 已知复数
使得
为纯虚数,
,
,则
的最小值是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1be94c746ea0cb4834e5295672e229a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec04f844e8fd9d9b1ef835e23eaa54e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77138483e183730dc3d94cdf96370f84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed55697f8a3975926f807581d28c0bf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8ddfb1a73da52b1916e118c27cf5aef.png)
您最近一年使用:0次
3 . 已知向量
满足
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a019c35a09b9fcb44a885e9e8be09b5.png)
,若
为
的夹角,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38dd8aad9cfb5e1fe2a45d80923f1571.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae951e0bb5a2a406f1572fc1e4964265.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d0692ba6c44c6087233b88c19bdba5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a019c35a09b9fcb44a885e9e8be09b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adbba9a992583ff1d781549a9065028e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9ddc6cbc0819cacb4116db926b2e6ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38dd8aad9cfb5e1fe2a45d80923f1571.png)
您最近一年使用:0次
4 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ac535eb7cc47b42d7db3b803f76a00e.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ac535eb7cc47b42d7db3b803f76a00e.png)
您最近一年使用:0次
5 . 函数
的最小值为m,最大值为M,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/303cfb9f2d99ba4c0601487341506d5f.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2537b9f694a6a1d43167f53022acaf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/303cfb9f2d99ba4c0601487341506d5f.png)
您最近一年使用:0次
6 . 设A为三元集合(三个不同实数组成的集合),集合B={x+y|x,y∈A,x≠y},若
,则集合A=_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/981ad92b2b40fcbaaf00f0f09c96a1d6.png)
您最近一年使用:0次
名校
7 . 设
、
、
P是线段AB上的一个动点,
.若
则实数λ的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93c7781652e183fefe7b0b8578da2735.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd3c1c7d1c02ad96279b5dc0f0c46696.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6846bdc92d860e0710a8e51c5d4e6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dfb7bdbc00bc94af224e8bdf0250db2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08979184761dcfef01ded2c5ae236ced.png)
您最近一年使用:0次
2018-12-22更新
|
156次组卷
|
4卷引用:2018数学竞赛(重庆赛区)预赛试题
8 . 已知复数z的模为1,则
的最小值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae711a152389e58373bd0c2851022585.png)
您最近一年使用:0次