Khẳng định nào sau đây là sai?
A. Q ⋂ R=Q B. N*⋂ R=N* C. Z ⋃ Q=Z D. N ⋃ N*=N*...
Mathematics, 17.10.2021 17:20 Jasten
Khẳng định nào sau đây là sai?
A. Q ⋂ R=Q B. N*⋂ R=N* C. Z ⋃ Q=Z D. N ⋃ N*=N*
Answers: 3
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