The infinite sequence a1, a2,…, an,… is such that a1 = 2, a2 = -3, a3 = 5, a4 = -1, and an = an-4 for n > 4. What is the sum of the first 97 terms of the sequence?慲_出国考试答疑器_GMAT_试题

出国考试答疑器，
解决你的问题

在这里你可以:

GMAT全题库答疑

GMAT全真模拟考试

Problem Solving

试题详情

题目：

The infinite sequence a₁, a₂,…, a_n,… is such that a₁ = 2, a₂ = -3, a₃ = 5, a₄ = -1, and a_n = a_n-4 for n > 4. What is the sum of the first 97 terms of the sequence?

慲

选项:

A、72

B、74

C、75

D、78

E、80

答案:

B

经典答疑
发起提问

提问：

点此查看答疑

评分: 0

浏览: 818

点我领取
免费专项课程

在线咨询