高中数学代数与函数一其他练习题90
题目内容

已知 http://picflow.koolearn.com/upload/papers/20140824/20140824050128507601.png都是定义在 http://picflow.koolearn.com/upload/papers/20140824/20140824050128538279.png上的函数, http://picflow.koolearn.com/upload/papers/20140824/20140824050128554531.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824050128570760.png,且 http://picflow.koolearn.com/upload/papers/20140824/20140824050128585665.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824050128601585.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824050128616996.png,对于数列 http://picflow.koolearn.com/upload/papers/20140824/201408240501286321015.png,任取正整数 http://picflow.koolearn.com/upload/papers/20140824/20140824050128648591.png,则前k项和大于 http://picflow.koolearn.com/upload/papers/20140824/20140824050128663420.png的概率是(   )

2021-07-16

A.http://picflow.koolearn.com/upload/papers/20140824/20140824050128679414.png  

B.http://picflow.koolearn.com/upload/papers/20140824/20140824050128694370.png  

C.http://picflow.koolearn.com/upload/papers/20140824/20140824050128726338.png   

D.http://picflow.koolearn.com/upload/papers/20140824/20140824050128757369.png

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