1 . 已知函数
,则不等式
的解集为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c45f179dab8a36ef3523fb70b5f58559.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2180e18416d40abb243bd23984e7aba.png)
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2 . 不等式
的解集为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33a04ffc334a12013f816319a79f4b.png)
您最近一年使用:0次
解题方法
3 . 已知集合
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1336d38741aab2255a35c26612bbd7cc.png)
![](https://img.xkw.com/dksih/QBM/2016/3/18/1572545467555840/1572545473273856/STEM/50b111d5174f41fd804d68da3bd4cb7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1336d38741aab2255a35c26612bbd7cc.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
4 . 已知集合
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ec37ff1e8eda033364d36308da03536.png)
![](https://img.xkw.com/dksih/QBM/2016/3/25/1572557501038592/1572557506756608/STEM/b2595e6f13ea47d3bdc7491d5aeaa1ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9f4edcc08f2a28cb745397e4f0705d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ec37ff1e8eda033364d36308da03536.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次