名校
1 . 若对任意实数
,不等式
恒成立,则实数
的取值范围为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6419ada8ec823b1fd52e38c314f65b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
2 . 若不等式
的解集为
,则实数
的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da151618c285b8c7f9f17c28c2b1e1ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a837165ca03f9e4ea8964979c95e3bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2021-10-20更新
|
189次组卷
|
2卷引用:山东省日照市日照第一中学2022-2023学年高一上学期10月月考数学试题
3 . 对于任意复数
,
,任意向量
,
,给出下列说法:①
;②
;③若
,则
;④若
,则
,.其中正确的是________ (填序号).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af68f652b4c13657ffddf3c9e7eb262b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa224ed9be8766a4d0b5138bd57de0f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74a100d401d78914e89031d187db644c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbca1e8eb590d522e9be23be09170760.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bae527610c6b137cd499d78b657eac5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/063fc82b8f5c123f1fbf572ce4cdf062.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4d3040f7af309b4d9d4bca7ef97f804.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b0e1744a06628ef817233b9830f8458.png)
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