2,4,3,( ),13/4,27/8,53/16
2023-06-10
A. 1
B. 7/2
C. 7/3
D. 4
参考答案:B
B. 7/2
C. 7/3
D. 4
参考答案:B
相邻两项作差可得一公比为-1/2的等比数列。故答案为B。
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2023-06-10
相邻两项作差可得一公比为-1/2的等比数列。故答案为B。
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