1 . 糖水不等式:
成立的实数
是有条件限制的,使糖水不等式:
不成立的
的值可以是_____________________ (只需填满足题意的一个值即可).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ae8f2c028e20e93dddb726f0c0cf0a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f270cc0d65b1907daab3539975ec6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
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2 . 德国数学家高斯在证明“二次互反律”的过程中首次定义了取整函数
,其中
表示“不超过x的最大整数”,如
,
,
.写出满足
的一个x的值__________ ;关于x的方程
的解集为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7e3204e4dc47a448860779349efcedf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ab85825d4a002600ca41bd3cd2ee7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1416cab806012f939ae5f1e37d468142.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1039d4147f529ea4257421ce86c78b33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3050bee03c252a317fdd4700ae707cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7093901fb749fda5fa4db984b6574fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20f6c1b9d9148dc69cd882f990408652.png)
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2023-02-25更新
|
255次组卷
|
2卷引用:福建省泉州市2022-2023学年高一上学期期末教学质量监测数学试题
名校
3 . 给出如下四个命题:
①“抛物线
的焦点坐标是
”为真命题;
②若
:
,则
:
;
③“
,
”的否定是“
,
”;
④“任意
,
”为真命题的一个充分不必要条件是
.
其中不正确的命题的是___________ .
①“抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b1183df9f26985febdc844cda75ed4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0483b89034216f8684241e66e7942d4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4034672c4968a0607d04f8b6d0c0627a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1940991107dc6ae92d8fa19df561e508.png)
③“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc906b12f576e3ffc5e74d3d50c2bbac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6935a13445cd10752d10072d9ad4f188.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d009c9bd0a09d83c817b3bef8ef8351e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2fc142a1a27251086b668c77bfebf65.png)
④“任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0eac2b31a19918895e5af2d316490e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee9815fddd14a70e4786a3b608876b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f184ef9e0d57554e95f369c9d4bbfea1.png)
其中不正确的命题的是
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