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/2012-06/01/962fc418-66df-491a-8a9e-983bc05eab50/paper.files/image052.png,若 http://picflow.koolearn.com/upload/2012-06/01/962fc418-66df-491a-8a9e-983bc05eab50/paper.files/image053.pnghttp://picflow.koolearn.com/upload/2012-06/01/962fc418-66df-491a-8a9e-983bc05eab50/paper.files/image054.png上恒成立,则实数 http://picflow.koolearn.com/upload/2012-06/01/962fc418-66df-491a-8a9e-983bc05eab50/paper.files/image055.png的取值范围是(   )

2021-08-03

A.http://picflow.koolearn.com/upload/2012-06/01/962fc418-66df-491a-8a9e-983bc05eab50/paper.files/image056.png

B.http://picflow.koolearn.com/upload/2012-06/01/962fc418-66df-491a-8a9e-983bc05eab50/paper.files/image057.png

C.http://picflow.koolearn.com/upload/2012-06/01/962fc418-66df-491a-8a9e-983bc05eab50/paper.files/image058.png

D.http://picflow.koolearn.com/upload/2012-06/01/962fc418-66df-491a-8a9e-983bc05eab50/paper.files/image059.png

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