1 . 记集合
.
(1)若
,求证:
;
(2)设集合
且
,若
,
,求
的取值范围;
(3)若
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8edb4a35ee8fc18d21348b26bbbefd2.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e96f3ea0467dc6393d7c4b602175a394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/119c67d2cd0e136ac325abae7cadda16.png)
(2)设集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39fb84c074fea379fbb972a6b1608fd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e5738a64c9562be3585ecde74732dd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9230efa8ff1efbcc68807463b2e3667f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65493f5dd32e0903c633210cc05b1825.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a015906d7d42da6b86a454d056b72bf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d759b1ec7f4fa266275c32eb1398c26.png)
您最近一年使用:0次
解题方法
2 . 已知函数
满足:对任意
,都有
.
命题
:若
是增函数,则
不是减函数;
命题
:若
有最大值和最小值,则
也有最大值和最小值.
则下列判断正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7389d52e6aad9c9c0fb7d9b820bdb86c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d200a7afe1e011713e14886a6887e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ec6c7a1da7ecaef51a3d08fbcdf2821.png)
命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b7c2420c387be8882df4359ac10b86.png)
命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
则下列判断正确的是( )
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
2021-05-14更新
|
740次组卷
|
8卷引用:上海市长宁区2021届高三二模数学试题
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