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tranhaivinh
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2025-01-12 10:14:46
tự hỏi tự trả lời hả bạn
2025-01-04 21:29:18
abcabc= 1000abc+abc=abc(1000+1)=1001abc
Vì 1001 chia hết cho 11 nên 1001abc chia hết cho 11(đpcm)
2025-01-04 21:20:10
14,5*(4+2+2+8+1)=14,5*7=.... tự tính (~﹃~)~zZ
2025-01-04 21:17:12
n=1-3=-2