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trucphuong02
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1/ Tìm x;y biết: (2x-5)^2000 + (3y+4)^2002 \leq 0
2/ Tìm các số nguyên dương m;n sao cho: 2^m - 2^n= 256
2/ Tìm các số nguyên dương m;n sao cho: 2^m - 2^n= 256
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