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If ""^(n)P(3)=1320, find n....

If `""^(n)P_(3)=1320`, find n.

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Knowledge Check

  • If ""^(n)P_(r)=3024 then (n,r) is

    A
    (4,9)
    B
    (9,4)
    C
    (9,6)
    D
    (6,9)

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