12th grade Data

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In this sequence, tk is a factorial number, often written k!. Show that tk=k!=k(k-1)(k-2)...(3)(2)(1)

  • 12th grade Data -

    I don't get it
    k!=k(k-1)(k-2)...(3)(2)(1) by definition,
    what's to "show" ?

  • 12th grade Data -

    what did they speak
    language

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