已知函数f(x)是定义在R上的偶函数,且在区间[0,+∞)内单调递增.若实数a满足f(log2a)+f(
a)≤2f(1),则a的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddd0800eb0a3e80bc2e53e9d43ba2a5d.png)
更新时间:2017-11-02 15:08:35
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