高中数学代数与函数一函数练习题62
题目内容

已知函数 http://picflow.koolearn.com/upload/2015-01/19/156ebe6e-3547-4231-b5b4-bfc1a8c2befb/paper.files/image089.png调递减,那么实数a的取值范围是(  )

2021-08-03

A.http://picflow.koolearn.com/upload/2015-01/19/156ebe6e-3547-4231-b5b4-bfc1a8c2befb/paper.files/image090.png

B.http://picflow.koolearn.com/upload/2015-01/19/156ebe6e-3547-4231-b5b4-bfc1a8c2befb/paper.files/image091.png

C.http://picflow.koolearn.com/upload/2015-01/19/156ebe6e-3547-4231-b5b4-bfc1a8c2befb/paper.files/image092.png

D.http://picflow.koolearn.com/upload/2015-01/19/156ebe6e-3547-4231-b5b4-bfc1a8c2befb/paper.files/image093.png

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