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题库 / Prep2007E1-DS-8
If n and m are positive integers, what is the remainder when ~$3^{4n + 2 + m}$~ is divided by 10 ?
(1) n = 2
(2) m = 1
Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
EACH statement ALONE is sufficient.
Statements (1) and (2) TOGETHER are NOT sufficient.
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(1) 3^10+m, 余数不确定
(2) 3^4n+3为1^7,3^11,3^15... 余数均为7