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标题: TT GWD-21-26 [打印本页]

作者: aliciafull 时间: 2008-2-29 21:41
标题: TT GWD-21-26

Q26:

For each positive integer n, the
integer n^* is defined by n^* = n²
+ 1. What is the value of the positive
integer k ?
(my choice is C)

(1) When k
is divided by 4, the remainder is 1.

(2) 18 ≤ k^*
≤ 36

满足1的K太多了。。。
2解出来也有两个呀，4和5，为什么不选C呢？答案是B。

作者: aliciafull 时间: 2008-3-1 22:04
XDJM们快来帮帮忙呀，没几天就要考了，哎

作者: diane320 时间: 2008-3-3 18:20
4不行啊

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