高中数学代数与函数一其他练习题86
题目内容

函数 http://picflow.koolearn.com/upload/papers/20140823/20140823154507433591.gif,当 http://picflow.koolearn.com/upload/papers/20140823/20140823154507448484.gif时, http://picflow.koolearn.com/upload/papers/20140823/20140823154507464717.gif恒成立,则实数 http://picflow.koolearn.com/upload/papers/20140823/20140823154507573204.gif的取值范围是(   ) http://picflow.koolearn.com/upload/papers/20140823/20140823154507589332.jpg

2021-07-16

A.http://picflow.koolearn.com/upload/papers/20140823/20140823154507604288.gif

B.http://picflow.koolearn.com/upload/papers/20140823/20140823154507636426.gif

C.http://picflow.koolearn.com/upload/papers/20140823/20140823154507807502.gif

D.http://picflow.koolearn.com/upload/papers/20140823/20140823154507823408.gif

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