Asked by Josh

In this sequence, tk is a factorial number, often written k!. Show that tk=k!=k(k-1)(k-2)...(3)(2)(1)
Answered by Reiny
I don't get it
k!=k(k-1)(k-2)...(3)(2)(1) by definition,
what's to "show" ?
Answered by Anonymous
what did they speak
language
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