命题
,使得
成立;命题
,不等式
恒成立.若命题
为假,则实数a的取值范围为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/420971d66ec7b70a7a168a31ae55d163.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef7ffed3bbf2fcc4f3523a13c99b6564.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3de3a3443df1028e0c9f087c3692b2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/908f046c9ea18ac566f6f8cf42456ec1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
更新时间:2022-11-21 08:25:20
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【推荐1】设命题p:“实数a满足
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【推荐2】若“存在实数x,使不等式组
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【推荐3】设有两个命题:
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如果
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
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【推荐1】空旷的田野上,两根电线杆之间的电线都有相似的曲线形态.事实上,这些曲线在数学上常常被称为悬链线.悬链线的相关理论在工程、航海、光学等方面有广泛的应用.在恰当的坐标系中,这类函数的表达式可以为
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【推荐1】已知函数
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