设函数
,设
,
,若
是
的充分不必要条件,则
的取值范围是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ace539c214adf70e9db680085058e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d74f56a84089fc95e5338efa2418b945.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/920c5ffb500a946b2a37e6c496c46cbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
20-21高三上·上海长宁·开学考试 查看更多[2]
更新时间:2020-09-23 12:55:54
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【推荐1】若“
”是“
”的充分不必要条件,则
的取值范围是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2920b2c923faf8252a0839d4775649ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da47390135447d0d5f47bf55185082b4.png)
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您最近一年使用:0次
填空题-单空题
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较易
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【推荐2】若
:
是
:
的充分不必要条件,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200849ce71f53c0321506e27de437b8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff8bbcb7de75ab439155641ac29d12f0.png)
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【推荐1】设函数
的最小值是
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的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3dc69c8c4212ff83f6b8b817b5057b6.png)
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解题方法
【推荐2】
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