高中数学代数与函数一其他练习题85
题目内容

函数y=-2 http://picflow.koolearn.com/upload/papers/20140823/20140823130357990187.gif+ http://picflow.koolearn.com/upload/papers/20140823/20140823130358068205.gif的单调递减区间是(  )

2021-07-16

A.(-∞,- http://picflow.koolearn.com/upload/papers/20140823/20140823130358083271.gif)

B.(- http://picflow.koolearn.com/upload/papers/20140823/20140823130358083271.gif, http://picflow.koolearn.com/upload/papers/20140823/20140823130358083271.gif)

C.(-∞,- http://picflow.koolearn.com/upload/papers/20140823/20140823130358083271.gif)∪( http://picflow.koolearn.com/upload/papers/20140823/20140823130358083271.gif,+∞)

D.( http://picflow.koolearn.com/upload/papers/20140823/20140823130358083271.gif,+∞)

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