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Câu 13:

Tập hợp $X=\{1 ; 2 ; 3\}$

Câu 13: Tập hợp X={1;2;3}X=\{1 ; 2 ; 3\}X={1;2;3} có bao nhiêu tập con?

Thông tin câu hỏi

Câu 13:

Tập hợp $X=\{1 ; 2 ; 3\}$ có bao nhiêu tập con?