1 . 已知下列命题:
①函数
的单调增区间是
.
②要得到函数
的图象,需把函数
的图象上所有点向左平行移动
个单位长度.
③已知函数
,当
时,函数
的最小值为
.
④已知角
、
、
是锐角
的三个内角,则点
在第四象限.
其中正确命题的序号是_____________ .
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c99aac52fb36e39629166cb002e247bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91c41281c640df1d3cf62fd1c4205daf.png)
②要得到函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4deaac6b6a9e2f0d71bc09e191999ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b9643da0c0fea4f099f9a9133d6076.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
③已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cab9f23137d179abffff9189578ff0e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf8eca68c4c7478f412183aa275fc7dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b0ee1a5b897f98c7cef8f90bcf07067.png)
④已知角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63eb26e976b64016de279c68beee71d5.png)
其中正确命题的序号是
您最近一年使用:0次
2 . 对
,定义
.
(1)求
的最小值;
(2)
,有
恒成立,求A的最大值;
(3)求证:不存在
,且m>n,使得
为恒定常数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e97769855336d73371930df1f187875e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f166b8917034ebc7522d1a160707f6a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a7de87e4f04e15189c927b34b2e5afb.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bde2576b383ae3c851529435805b3adc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b206982b923b94befb9985e51f6499cb.png)
(3)求证:不存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c61a450b5c1c412aca3294e9eb4e9874.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c29ca729804f56f23d760ab66b79f68.png)
您最近一年使用:0次
2021-07-19更新
|
539次组卷
|
3卷引用:上海市大同中学2023-2024学年高一下学期期中考试数学试卷