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、
B、
C、
D、
E、

答案:

E

提问:

16th的数是2^15,17th的数是2^16,18th的数是2^17 下一步怎么做呢 这事幂函数的知识点吧?
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提问:

ps
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