prep一数学题求解答

dididadaya · 发表于 2012-1-13 15:47:54

For every integer k from 1 to 10, inclusive, the kth term of a certain sequence is given by
.If T is the sum of the first 10 terms in the sequence, then T is

(A) greater than 2

(B) between 1 and 2

(C) between 1/2 and 1

(D) between 1/4 and 1/2

(E) between 1/4

站在刀尖舞蹈 · 发表于 2012-1-13 15:52:43

什么叫“the kth term of a certain sequence is given by" ? given by神马？囧

dididadaya · 发表于 2012-1-13 17:09:57

given by 后面是个公式（-1）的k+2次幂，乘以 1
————
2的k次幂

prep一数学题求解答

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prep一数学题 求解答

所属分类: GMAT考试

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prep一数学题求解答