解题方法
1 . 若函数
.
![](https://img.xkw.com/dksih/QBM/2020/12/25/2621865784213504/2624753802985472/STEM/990863255b2f4ac3aaf305e612309af3.png?resizew=265)
(1)在给定的平面直角坐标系中画出函数
图象;
(2)写出函数
的值域、单调区间;
(3)在①
,②
,③
这三个式子中任选出一个使其等于
,求不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cb845f062114c57be4e728b3929b436.png)
![](https://img.xkw.com/dksih/QBM/2020/12/25/2621865784213504/2624753802985472/STEM/990863255b2f4ac3aaf305e612309af3.png?resizew=265)
(1)在给定的平面直角坐标系中画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b672f564d03ed46d092bb130f229ad8.png)
(2)写出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b672f564d03ed46d092bb130f229ad8.png)
(3)在①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39012886bd8c8ae9189efafd46d40169.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e26ea0261f2b67983b07b8d0bb8bf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39241f2eeccaa16d0550d851619bcb42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad1dd158811a1ecc73bb3c32fa0fc1bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f7e9164849955afba1cbc56a33086c0.png)
您最近一年使用:0次
2020-12-29更新
|
139次组卷
|
2卷引用:广东省佛山市南海区2020-2021学年高一上学期期中数学试题
名校
2 . 已知函数
.
(1)若
,解不等式
;
(2)是否存在实数
,使不等式
对一切实数
恒成立?若存在,求出
的取值范围,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/242b7095d2bea8f94d3a0366ded17f30.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5be1d8c6384d7fabddb693b2b7fcdf4a.png)
(2)是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3cdff8dbc573b88a9ce6225ab287e94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2019-10-21更新
|
194次组卷
|
3卷引用:上海市上海中学2017-2018学年高一上学期期中数学试题