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TungLam2000
2 năm trước
Chứng minh rằng: a, (2^10+1)^2020 chia hết cho 25^2020 b, 3^1930 + 2^1930 chia hết cho 13 c, (30^4)^1975 . 5^1870 . 4^935 - (7^5)^1954 chia hết cho 23 Các bạn giúp mình với nhé!
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