Of the following, which is greatest?
A. (1/5)的-2次方
B. (1/3)的-2次方
C. 3的-2次方
D. 5的-2次方
E. 2的3次方
偶对分辨大小极弱智啊,请各位帮帮忙!谢了!
A 25
B 9
C 1/9
D 1/25
E 8