高中数学代数与函数一数列107
题目内容

等差数列 http://picflow.koolearn.com/upload/papers/20140824/20140824022610502481.pnghttp://picflow.koolearn.com/upload/papers/20140824/20140824022610517658.png中，已知 http://picflow.koolearn.com/upload/papers/20140824/20140824022610517409.png，且在前 http://picflow.koolearn.com/upload/papers/20140824/20140824022610533297.png项和 http://picflow.koolearn.com/upload/papers/20140824/20140824022610548388.png中，仅当 http://picflow.koolearn.com/upload/papers/20140824/20140824022610611430.png时， http://picflow.koolearn.com/upload/papers/20140824/20140824022610626399.png最大，则公差d满足（ ）

2021-09-28

A.http://picflow.koolearn.com/upload/papers/20140824/20140824022610642701.png

B.http://picflow.koolearn.com/upload/papers/20140824/20140824022610673672.png

C.http://picflow.koolearn.com/upload/papers/20140824/20140824022610689684.png

D.http://picflow.koolearn.com/upload/papers/20140824/20140824022610704656.png

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