高中数学代数与函数一其他练习题79
题目内容

对于函数 http://picflow.koolearn.com/upload/papers/20140823/20140823225953284652.png,在使 http://picflow.koolearn.com/upload/papers/20140823/20140823225953299629.png成立的所有常数 http://picflow.koolearn.com/upload/papers/20140823/20140823225953331399.png中,我们把 http://picflow.koolearn.com/upload/papers/20140823/20140823225953331399.png的最大值 http://picflow.koolearn.com/upload/papers/20140823/20140823225953362462.png叫做 http://picflow.koolearn.com/upload/papers/20140823/20140823225953284652.png的下确界,则对于 http://picflow.koolearn.com/upload/papers/20140823/20140823225953643534.png,且 http://picflow.koolearn.com/upload/papers/20140823/20140823225953658396.png不全为 http://picflow.koolearn.com/upload/papers/20140823/20140823225953674262.pnghttp://picflow.koolearn.com/upload/papers/20140823/20140823225953689632.png的下确界是(   )

2021-07-15

A.http://picflow.koolearn.com/upload/papers/20140823/20140823225953705310.png

B.2

C.http://picflow.koolearn.com/upload/papers/20140823/20140823225953721272.png

D.4

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