解题方法
1 . 已知集合
,
,
.
(1)求集合I;
(2)若函数
大于0对
恒成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a93671010c350fadb331b7179b4c18f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad0da1519183bfd1bd7b8715b05a66c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/081ea1b5f57c39962e501078aa17e9c9.png)
(1)求集合I;
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b77c22612ce4f80e6e42e5f6858e1d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bb6324279df94decba955e04ccfa9e.png)
您最近一年使用:0次
2020-05-09更新
|
316次组卷
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2卷引用:四川省南充市2015-2016学年高一年下学期学业水平评估考试数学
2011高一·四川成都·学业考试
2 . 已知函数
;
(1)若
,求
的值域;
(2)在(1)的条件下,判断
的单调性;
(3)当
时
有意义求实
的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a526f652d743681808548af5f96b4a71.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)在(1)的条件下,判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16534214250c59605aae906eef0094c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2011高一·四川成都·学业考试
解题方法
3 . 已知函数
;
(1)若
,求
的值,并作出
的图象;
(2)当
时,恒有
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32365f0cccb9ea4cd115ff4c13c902de.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ed670b1f668778c6243f3f7470ee7d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70a00cc02439b6c58c137c1ba63ef592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://img.xkw.com/dksih/QBM/2011/12/28/1570636661506048/1570636666986496/STEM/9b557cad331e4da1a931e7af3cf1f4cf.png?resizew=220)
您最近一年使用:0次