解题方法
1 . 已知函数
的定义域为
,若
恒成立,则a的值是_____ .
![](https://img.xkw.com/dksih/QBM/2016/10/21/1573086094950400/1573086100987904/STEM/a1223fee40a04ad0bfbfa5a29cfbc1ec.png?resizew=175)
![](https://img.xkw.com/dksih/QBM/2016/10/21/1573086094950400/1573086100987904/STEM/b534302b231e419c93c9d52368d142f2.png?resizew=69)
![](https://img.xkw.com/dksih/QBM/2016/10/21/1573086094950400/1573086100987904/STEM/2e3b8d8d7fd9429f9cbfe7c8299562f0.png?resizew=52)
您最近一年使用:0次
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2 . 已知函数
(
且
).
(1)若
时,解不等式
;
(2)若函数
的值域是
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32884105d64ceb4621e4f5f7bff44ddf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ec4add31dd4c2d48aadbb7bd13e607.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebb9b1a345e3913be8753c2f67563c0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2016-12-04更新
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719次组卷
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2卷引用:2015-2016学年江苏省泰兴一中高二下学期期中文科数学试卷