高中数学代数与函数一其他练习题138
题目内容

在R上定义运算 http://picflow.koolearn.com/upload/papers/20140823/20140823180235479770.png,若不等式 http://picflow.koolearn.com/upload/papers/20140823/201408231802357601064.png成立,则实数a的取值范围是

2021-07-21

A.http://picflow.koolearn.com/upload/papers/20140823/20140823180235776427.png

B.http://picflow.koolearn.com/upload/papers/20140823/20140823180235791508.png

C.http://picflow.koolearn.com/upload/papers/20140823/20140823180235807670.png

D.http://picflow.koolearn.com/upload/papers/20140823/20140823180235823664.png

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