Mathematics, 27.09.2021 19:00 ash3246
Có bao nhiêu cách lấy ra k phần tử trong n phần tử xếp trên đường tròn sao cho không có 2 phần tử kề nhau cùng được lấy ra?
Answers: 2
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Có bao nhiêu cách lấy ra k phần tử trong n phần tử xếp trên đường tròn sao cho không có 2 phần tử kề...
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