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painlesser04
6/20/2023 11:58:53 AM
A.
120
B.
5
C.
3125
D.
1
1
1
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Câu Trả Lời:
tuongduythien
Phương pháp giải:
Sử dụng hoán vị. Giải chi tiết:Từ các chữ số 1, 2, 3, 4, 5 lập được 5! = 120 số tự nhiên gồm năm chữ số đôi một khác nhau.
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