高中数学代数与函数一函数练习题92
题目内容

某同学对函数 http://picflow.koolearn.com/upload/papers/20140823/20140823191330137646.png进行研究后,得出以下五个结论:①函数 http://picflow.koolearn.com/upload/papers/20140823/20140823191330153577.png的图象是中心对称图形;②对任意实数 http://picflow.koolearn.com/upload/papers/20140823/20140823191330168272.pnghttp://picflow.koolearn.com/upload/papers/20140823/20140823191330184594.png均成立;③函数 http://picflow.koolearn.com/upload/papers/20140823/20140823191330153577.png的图象与 http://picflow.koolearn.com/upload/papers/20140823/20140823191330168272.png轴有无穷多个公共点,且任意相邻两点的距离相等;④函数 http://picflow.koolearn.com/upload/papers/20140823/20140823191330153577.png的图象与直线 http://picflow.koolearn.com/upload/papers/20140823/20140823191330371414.png有无穷多个公共点,且任意相邻两点的距离相等;⑤当常数 http://picflow.koolearn.com/upload/papers/20140823/20140823191330387311.png满足 http://picflow.koolearn.com/upload/papers/20140823/20140823191330402427.png时,函数 http://picflow.koolearn.com/upload/papers/20140823/20140823191330153577.png的图象与直线 http://picflow.koolearn.com/upload/papers/20140823/20140823191330434504.png有且仅有一个公共点。其中所有正确结论的序号是 (     )

2021-08-04

A.①②④

B.①②③④

C.①②④⑤

D.①②③④⑤

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