高中数学代数与函数一其他练习题79
题目内容

已知函数 http://picflow.koolearn.com/upload/papers/20140824/20140824013519713959.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824013519729323.png处取得极大值 http://picflow.koolearn.com/upload/papers/20140824/20140824013519760298.png,则 http://picflow.koolearn.com/upload/papers/20140824/20140824013519791404.png的值为(  )

2021-07-15

A.http://picflow.koolearn.com/upload/papers/20140824/20140824013519807304.png

B.-http://picflow.koolearn.com/upload/papers/20140824/20140824013519838382.png 

C.-2或一http://picflow.koolearn.com/upload/papers/20140824/20140824013519838382.png

D.不存在

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