如图分别为定义域和值域均为
的函数
和函数
的图象,则下列命题正确的是( )
![](https://img.xkw.com/dksih/QBM/2019/12/22/2367517996163072/2409007170756608/STEM/b16d14b5da414055af007bdb9106a6bf.png?resizew=178)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ead3fdcb8fe8f5eb3dbe7d96cabc28b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://img.xkw.com/dksih/QBM/2019/12/22/2367517996163072/2409007170756608/STEM/835ee9ae66f14e099d12ba746ded5e15.png?resizew=179)
![](https://img.xkw.com/dksih/QBM/2019/12/22/2367517996163072/2409007170756608/STEM/b16d14b5da414055af007bdb9106a6bf.png?resizew=178)
A.函数![]() ![]() | B.函数![]() ![]() |
C.函数![]() ![]() | D.函数![]() ![]() |
更新时间:2020-02-28 23:20:32
|
【知识点】 求函数零点或方程根的个数
相似题推荐
单选题
|
适中
(0.65)
名校
解题方法
【推荐1】已知
是定义在
上的奇函数,满足
,下列说法:
①
的图象关于
对称;
②
的图象关于
对称;
③
在
内至少有
个零点;
④若
在
上单调递增,则它在
上也是单调递增.
其中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09e2ac0b13e5d807c334a27e694cb6e7.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d599059e6b2c918ab15ee22611b6962.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9da30f3b77f2318f2000fa009979f04c.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd52ef062e1934be348f2309946b1f3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e11f4ca0e7ace69f92130d0525bcdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b12260fbfb625b139b19cd471cac8c.png)
其中正确的是( )
A.①④ | B.②③ | C.②③④ | D.①③④ |
您最近一年使用:0次
单选题
|
适中
(0.65)
解题方法
【推荐2】已知函数
,
,
,
,设
,则关于
的方程
的实根个数最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df18da1ecd1a83afc4544ee71f00c56b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af71cb86a080ab5794e75674a31b92ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0fbfccd73f25e97c986b3a9b78fcf0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf039c46a25e331446c6ee1e9af3c82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/155d348a9fd05cf2e3688b14eac7c2ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41084df90132150c87103a3705e8da80.png)
A.0 | B.1 | C.2 | D.3 |
您最近一年使用:0次