解题方法
1 . 判断正误(正确的填“正确”,错误的填“错误”)
(1)对任意
,
均成立.( )
(2)若
,则
.( )
(3)
异号时,
.( )
(4)当
时,
的最小值为2.( )
(1)对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73254f32b6da29ecc32df2e9f87a4c97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bcce6eb3b38322059b6051ce600ee8b.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dfa55731858aaed472d94ba55af2cc4.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37006891004d02050e7c57db20af3981.png)
(4)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b27f27cbb8185c1974d715ff95f8801c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13f40c24c64bbb0645fcf585f4e66872.png)
您最近一年使用:0次
解题方法
2 . 判断正误(正确的打正确,错误的打错误)
(1)对任意
均成立.( )
(2)若
且
,则
.( )
(3)若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf3827ed33eeca93ecd65f9633de230d.png)
( )
(4)
同号时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aa23408bcc9f6200f22a310e5f2569a.png)
( )
(1)对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34b2999298af989cf5cebd29c8aab27f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2684b72f9f38f5046c8ecd4280b7b14b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2958030ec9d7543dda1f529593a915e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1ec5317c2642bca22a5814e21494acd.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2684b72f9f38f5046c8ecd4280b7b14b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf3827ed33eeca93ecd65f9633de230d.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aa23408bcc9f6200f22a310e5f2569a.png)
您最近一年使用:0次