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)
您最近一年使用:0次
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2 . 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
您最近一年使用:0次