1 . 已知函数
,
.
(1)若
,求使
的x的取值范围;
(2)当
时,设
,求
在区间
上的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef9e5c2f3e134ee0bb885fdc71c99c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab839d8569171afab5ed55c22013aa72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71baf6217604517fd98fa97d0f55b43.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e357538192b0086515ca082025dad9b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/189b2da6c420bf8f8900002d14f65f72.png)
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2卷引用:江西省宜春市丰城市第九中学2023-2024学年高二下学期第二次段考数学试题
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2 . 条件p:
是条件q:
的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a58e6a329ad4341b960c003e14e43c96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb271782555ab2cab17aefd479268056.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充要条件 | D.非充分又非必要条件 |
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3 . 已知集合
,
,则
等于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f40be56cad205a67a57f8e5c3cc1b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f484a7146a71564ab978b2e5c65c6b9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/551fd8cd8ea61d794c13074ccd7d6c4e.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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