解题方法
1 . 已知
则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/013dd05cd0d659bb13a267bc99414203.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
2 . 若函数
在其图象上存在不同的两点
,
,其坐标满足条件:
的最大值为0,则称
为“柯西函数”,
则下列函数:
;
;
;
.
其中为“柯西函数”的个数为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0f4d0979f99fca4394ea0aa7d53d1f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/183840b6798ab3f683c8342e925c862d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90da2e0fe6589a1fb50a5225c9b0f047.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed9a93b4bf49ad766e54a767f18fae38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0f4d0979f99fca4394ea0aa7d53d1f5.png)
则下列函数:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdfe5d01231f87e59225f19a1b26f15e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a9f20c0fba0980f358472046b127335.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4dc5d29c069bb67d0642090d660965d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/269adee22b7ea8a246b56d06fa3beb70.png)
其中为“柯西函数”的个数为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
2019-03-24更新
|
864次组卷
|
3卷引用:【校级联考】江西省临川第一中学等九校2019届高三3月联考数学(文)试题
名校
3 . 若不等式
对任意
恒成立,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8875b16e71f5d4a1ac2ffe91863e35b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e7631c37518ea27560afe7096d9444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2018-09-27更新
|
691次组卷
|
4卷引用:江西省景德镇一中2018-2019学年高二下学期期中考试数学(文)试题