已知函数
.
(1)若
,解不等式
;
(2)若
,证明:
恒成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35d94986674dc81c01c1c1a5e138b04f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03fc1cd2baabbf8afea25478e1258237.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f1b5a8d36a2c51143d30ec71ecfc442.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e66af88134ad0f4478146279ec79adb.png)
更新时间:2021-01-28 17:21:54
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【推荐1】设
,
,
.
(1)解不等式
;
(2)
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf53f232cd433b791e3696c0ba97750b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4367e45a47a02037a38bd591dd09f930.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/640cb603fc8315d9e37c97561f6a7b83.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e2405c4822bceae1cf191edb502d3b0.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ad5fe274cfc8da2dacfb65801f344ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee59fbe13325820ec6fc47eb5f35d87.png)
您最近一年使用:0次
解答题-问答题
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【推荐2】已知函数
.
(1)求不等式
的解集;
(2)若关于
的不等式
的解集为
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9dc61bd4f9d73cf066997f1ab67fa48.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/119b9bf45b37a4a3fe0663d391c9a98d.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f80969afb330c5949fe4f45f7eecfbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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【推荐1】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be292bdb4107e78fae0034f55bcabafd.png)
(1)求
的解集;
(2)若对任意的
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使得
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be292bdb4107e78fae0034f55bcabafd.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f81ed7f6a4475e0fa682fa81ee747da3.png)
(2)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c51159984b2cb00f30b3986315019623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5873c01192b7d33b7483f444f90b5b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1276b50f852f417b3adceb202e4018ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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【推荐2】已知函数
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(1)解不等式f(x)>3;
(2)对于x1,x2R,使得f(x1)>g(x2)成立,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b936d721ed2ee46841308ad1c8bf7069.png)
(1)解不等式f(x)>3;
(2)对于x1,x2R,使得f(x1)>g(x2)成立,求a的取值范围.
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