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nguyenngantrang2004
2 năm trước
Cho A =-5/n+3 với n là số nguyên a, Số nguyên n phải thỏa mãn điều kiện gì để A là phân số? b, Tìm phân số A khi n = 0; n = -2 ; n = -7 c, Với giá trị nào của n thì A là số nguyên?
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