高中数学代数与函数一其他练习题86
题目内容

如果函数 http://picflow.koolearn.com/upload/papers/20140823/20140823165956622544.gif满足:对于任意的 http://picflow.koolearn.com/upload/papers/20140823/20140823165956637511.gif,都有 http://picflow.koolearn.com/upload/papers/20140823/20140823165956653639.gif恒成立,则 http://picflow.koolearn.com/upload/papers/20140823/20140823165956668192.gif的取 http://picflow.koolearn.com/upload/papers/20140823/2014082316595674672.gif值范围是(  )

2021-07-16

A.http://picflow.koolearn.com/upload/papers/20140823/20140823165956778493.gif http://picflow.koolearn.com/upload/papers/20140823/2014082316595679372.gif

B.http://picflow.koolearn.com/upload/papers/20140823/20140823165956809644.gif

C.http://picflow.koolearn.com/upload/papers/20140823/20140823165956824893.gif

D.http://picflow.koolearn.com/upload/papers/20140823/20140823165956856903.gif

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