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nguyenthithanhtruc2706
2 năm trước
1. Viết các tập hợp = 2 cách a. tập hợp A số tự nhiên không vượt quá 8 b. tập hợp B số tự nhiên lớn hơn 12 bé hơn 21 c. tập hợp C số tự nhiên lớn hơn 5 không vượt quá 10
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