if n is a positive integer, what is the remainder when 3^(8n+3)+2 is divided by 5?
A.0
B.1
C.2
D.3
E.4
答案是A,但我怎么算都是E,是不是答案错了啊
举报
LS 3的11次方尾数应该是7 我也选E
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