已知不等式
,
(1)当m=3时,求不等式解集;
(2)是否存在实数m对所有的实数x使不等式恒成立?若存在,求出m的取值范围;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3635d971d37eedef6f69e9aefb5ee01.png)
(1)当m=3时,求不等式解集;
(2)是否存在实数m对所有的实数x使不等式恒成立?若存在,求出m的取值范围;若不存在,请说明理由.
21-22高一上·河南驻马店·阶段练习 查看更多[5]
河南省驻马店市新蔡县第一高级中学2021-2022学年高一上学期9月月考数学试题江西省进贤县第一中学2021-2022学年高一上学期第一次月考数学试题(已下线)专题06 二次函数与一元二次方程、不等式-2021-2022学年高一《新题速递·数学》(人教A版2019)(已下线)专题2.7 一元二次不等式恒成立、存在性问题大题专项训练(30道)-2022-2023学年高一数学举一反三系列(人教A版2019必修第一册)陕西省西安市鄠邑区2023-2024学年高一上学期期中数学试题
更新时间:2021-10-05 20:00:50
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【推荐1】已知
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【推荐2】集合
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【推荐1】设命题
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解答题-问答题
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解题方法
【推荐2】已知关于
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(1)若不等式的解集是
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(2)若不等式的解集是
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)若不等式的解集是
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(4)若不等式的解集是
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