-1,1,-4/3, 2, ( ), 16/3。 A. 13/4 B. -16/5 C. -13/4 D. 16/5

作者: tihaiku 人气: - 评论: 0
问题 -1,1,-4/3, 2, ( ), 16/3。 A. 13/4 B. -16/5 C. -13/4 D. 16/5
选项
答案 B
解析 我们将原数列化为如下形式: -1/1,2/2,-4/3,8/4,( ),32/6 分子数列:-1,2,-4,8,( ),32,公比为一2的等比数列 分母数列:1,2,3,4,( ),6,等差数列 因此空缺项为-16/5。

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