已知关于x的不等式
对任意
恒成立,则实数a的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b30ba897503f5e37d7005774c0c225d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/103ec0d91228a7a0c07a0e2f7bf2b0b6.png)
2022高二·浙江·竞赛 查看更多[1]
更新时间:2022-10-19 09:31:07
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【知识点】 判断单调性
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