if a, m and n are positive integers, is n^2a a multiple of m^a?
(1) n is a multiple of m/2
(2) n is a multiple of 2m
答案是B
求指导~感激不尽~作者: zdytiffany 时间: 2013-3-1 21:07
If n is a multiple of 2m, n must be a multiple of m. Therefore, n^a is a multiple of m^a. Of course, (n^a)^2 is a multiple of m^a.作者: konglxd 时间: 2013-3-2 20:56
自己琢磨了下明白了~THX~
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