名校
解题方法
1 . 如果函数
对任意的实数
,存在常数
,使得不等式
恒成立,那么就称函数
为有界泛函.给出下面三个函数:①
;②
;③
.其中属于有界泛函的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f9c827e46d1a395fafbf15cdd6c6c42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f597af223c2701fd1762381ae4248b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e9e7131919449b3d2ebad852a1d78ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df9a16664ad088899f6437b9637b80b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44a02da0b0a7c0bf5851576867f896f6.png)
A.①③ | B.② | C.③ | D.①② |
您最近一年使用:0次
2016-12-03更新
|
774次组卷
|
2卷引用:2014-2015学年广东省深圳明珠学校高二上学期期中考试理科数学试卷
解题方法
2 . 在实数的原有运算法则中,我们补充定义新运算“⊙”如下:当
时,
⊙
=
;当
<
时,
⊙
=
,则函数
=(1⊙
)
(2⊙
) (
)的最大值等于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/254ea7edd675ccc450be96a18bcd8441.png)
![](https://img.xkw.com/dksih/QBM/2015/7/2/1572160975085568/1572160980213760/STEM/420590786172495eb52e09e3a34b9321.png)
![](https://img.xkw.com/dksih/QBM/2015/7/2/1572160975085568/1572160980213760/STEM/b474656b15b345388a7a72265a06200a.png)
![](https://img.xkw.com/dksih/QBM/2015/7/2/1572160975085568/1572160980213760/STEM/420590786172495eb52e09e3a34b9321.png)
![](https://img.xkw.com/dksih/QBM/2015/7/2/1572160975085568/1572160980213760/STEM/420590786172495eb52e09e3a34b9321.png)
![](https://img.xkw.com/dksih/QBM/2015/7/2/1572160975085568/1572160980213760/STEM/b474656b15b345388a7a72265a06200a.png)
![](https://img.xkw.com/dksih/QBM/2015/7/2/1572160975085568/1572160980213760/STEM/420590786172495eb52e09e3a34b9321.png)
![](https://img.xkw.com/dksih/QBM/2015/7/2/1572160975085568/1572160980213760/STEM/b474656b15b345388a7a72265a06200a.png)
![](https://img.xkw.com/dksih/QBM/2015/7/2/1572160975085568/1572160980213760/STEM/523c2eb3916f4fcca194694bcd0f96ef.png)
![](https://img.xkw.com/dksih/QBM/2015/7/2/1572160975085568/1572160980213760/STEM/62b2d872394144dc8bbbc1288e829ae3.png)
![](https://img.xkw.com/dksih/QBM/2015/7/2/1572160975085568/1572160980213760/STEM/f1d5eaf8482c4142aec0e17ad8ba8f51.png)
![](https://img.xkw.com/dksih/QBM/2015/7/2/1572160975085568/1572160980213760/STEM/e6f2c189a45c42c38cb98ae17f8bb0e4.png)
![](https://img.xkw.com/dksih/QBM/2015/7/2/1572160975085568/1572160980213760/STEM/f1d5eaf8482c4142aec0e17ad8ba8f51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8b6e2ac09e6a5d3a40d04c01d1d1ec3.png)
A.![]() | B.![]() | C.![]() | D.12 |
您最近一年使用:0次
12-13高二下·广东·期末
解题方法
3 . 对于函数
,如果存在区间
,同时满足下列条件:①
在
内是单调的;②当定义域是
时,
的值域也是
,则称
是该函数的“和谐区间”.若函数
存在“和谐区间”,则
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db527571cfd256c515424c6f9d114284.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db527571cfd256c515424c6f9d114284.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db527571cfd256c515424c6f9d114284.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db527571cfd256c515424c6f9d114284.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db527571cfd256c515424c6f9d114284.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b98c093555bc2fac382969593eb0c3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2011高三上·山东菏泽·专题练习
名校
解题方法
4 . 如果奇函数
在区间
上是增函数,且最小值为
,那么
在区间
上是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b101f2b66323ad3057f3e66c0e58dfee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c65bc23860e90520e6d018e2b2787c3a.png)
A.增函数且最小值为![]() | B.增函数且最大值为![]() |
C.减函数且最小值为![]() | D.减函数且最大值为![]() |
您最近一年使用:0次