高中数学代数与函数一函数练习题69
题目内容

已知 http://picflow.koolearn.com/upload/2012-06/05/4c5ba8d4-99a8-469c-9fcd-bf8815b81de1/paper.files/image060.png,若 http://picflow.koolearn.com/upload/2012-06/05/4c5ba8d4-99a8-469c-9fcd-bf8815b81de1/paper.files/image061.pnghttp://picflow.koolearn.com/upload/2012-06/05/4c5ba8d4-99a8-469c-9fcd-bf8815b81de1/paper.files/image062.png上恒成立,则实数 http://picflow.koolearn.com/upload/2012-06/05/4c5ba8d4-99a8-469c-9fcd-bf8815b81de1/paper.files/image063.png的取值范围是(   )

2021-08-03

A.http://picflow.koolearn.com/upload/2012-06/05/4c5ba8d4-99a8-469c-9fcd-bf8815b81de1/paper.files/image064.png

B.http://picflow.koolearn.com/upload/2012-06/05/4c5ba8d4-99a8-469c-9fcd-bf8815b81de1/paper.files/image065.png

C.http://picflow.koolearn.com/upload/2012-06/05/4c5ba8d4-99a8-469c-9fcd-bf8815b81de1/paper.files/image066.png

D.http://picflow.koolearn.com/upload/2012-06/05/4c5ba8d4-99a8-469c-9fcd-bf8815b81de1/paper.files/image067.png

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