Mathematics
Mathematics, 19.06.2021 06:30, aneisha0117

Có 6 quyển sách và 7 quyển vở. Hỏi có bao nhiêu cách chọn
một trong các quyển nói trên?

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Answers: 1

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Có 6 quyển sách và 7 quyển vở. Hỏi có bao nhiêu cách chọn
một trong các quyển nói trên?...

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