Toán Lớp 10: A=4,2,6,7,8,
B=1,3,3,4,5
TÌM A∩B
Tìm A∪B
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Toán Lớp 10: A=4,2,6,7,8,
B=1,3,3,4,5
TÌM A∩B
Tìm A∪B
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