名校
1 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75fecfc2c41221f78626f453d1aadb9a.png)
(1)设不等式
的解集为
,若
,求实数
的取值范围;
(2)若
在区间
内有两个零点
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75fecfc2c41221f78626f453d1aadb9a.png)
(1)设不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da70b22a00c100e852e2db2cac867b14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be17d03c642ef43b577a2c6d59b3a8e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ab75c9ed80c2804c8c8c047f1f8c03b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed18bd80c6c4142f68e89f4ad44570b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dae74c724114bfeff024dd7b79f5edc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
2 . 已知关于x的函数:
,其中
,则下列说法中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fef398c756155e169de137832edc6611.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
A.当![]() ![]() ![]() |
B.若不等式![]() ![]() ![]() |
C.若方程![]() ![]() ![]() ![]() |
D.若方程![]() ![]() ![]() |
您最近一年使用:0次