解题方法
1 . 函数
,则不等式
的解集是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1e57387fc4e5bfeca118d4644d9d0ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adb1dc30d4b297c6d5d0d6d91eab1e3b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 已知函数
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bf20afc8c240d0041c3ae160494da47.png)
____ ;若
,则
的取值范围是____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1187d38a7ebfb962f0643c587ccf1323.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bf20afc8c240d0041c3ae160494da47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40ccdfdd2b8d25d9771b8ce77b3644b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次