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vuhoangha
2 năm trước
1.tính tổng các số nguyên x thỏa mãn điều kiện: -100<x<30 2. Các số nguyên a,b có những đặc điểm nếu: a)a+b=-(|a|+|b|) b) a+b= |a| + |b| c)a+b= -(|a|-|b|) d)a+b= |b| + |a|
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