sudeptrai2510 sudeptrai2510

12-05-2024
Mathematics

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Câu 36: Có bao nhiêu số tự nhiên có 5 chữ số đôi một khác nhau và số đó chia hết cho 9 .

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3 ( 4d + 1 ) - 9d = 6 - 2d

3 ( 4d + 1 ) - 9d = 6 - 2d

3 ( 4d + 1 ) - 9d = 6 - 2d

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