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标题: 关于GWD-4-4滔滔第四题的问题 [打印本页]

作者: winny0821    时间: 2011-1-10 07:08     标题: 关于GWD-4-4滔滔第四题的问题

GWD-4-4滔滔
Q4:For a nonnegative integer n, if the remainder is 1 when 2n is divided by 3, then which of the following must be true?
I.n is greater than zero. n=0



II.3n = (-3)n
III.√2nis an integer.



A.I only



B.II only
C.I and II



D.I and III



E.II and III

1怎么错了?
作者: victoria820    时间: 2011-1-10 21:21

N等于0的时候,2的零次方为1,除3余数还是1,符合题意
作者: sayysong    时间: 2011-1-11 06:39

1除3商0 余1
作者: winny0821    时间: 2011-1-11 20:50

非常感谢!




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