高中数学代数与函数一函数练习题59
题目内容

已知函数 http://picflow.koolearn.com/upload/2014-05/09/01e7de78-8d24-45e3-990c-e326d21c1d00/paper.files/image001.png(a为常数).若 http://picflow.koolearn.com/upload/2014-05/09/01e7de78-8d24-45e3-990c-e326d21c1d00/paper.files/image002.png在区间[-1,+∞)上是增函数,则a的取值范围是(   )

2021-08-03

A.http://picflow.koolearn.com/upload/2014-05/09/01e7de78-8d24-45e3-990c-e326d21c1d00/paper.files/image003.png

B.http://picflow.koolearn.com/upload/2014-05/09/01e7de78-8d24-45e3-990c-e326d21c1d00/paper.files/image004.png

C.http://picflow.koolearn.com/upload/2014-05/09/01e7de78-8d24-45e3-990c-e326d21c1d00/paper.files/image005.png

D.http://picflow.koolearn.com/upload/2014-05/09/01e7de78-8d24-45e3-990c-e326d21c1d00/paper.files/image006.png

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