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[Problem Solving]

试题详情

题目:

In the sequence 1, 2, 4, 8, 16, 32, … , each term after the first is twice the previous term. What is the sum of the 16th, 17th, and 18th terms in the sequence?

选项:

A、218
B、3 (217)
C、7 (216)
D、3 (216)
E、7 (215)

答案:

E

提问:

我拆成sum = 2*(15+16+17) 对吗?

解答:

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解答: sysadmin

提问:

我拆成sum = 2*(15+16+17) 对吗?

解答:

点赞0
阅读350
解答: sysadmin老师

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