Posted by Josh on Monday, February 23, 2009 at 12:43pm.
In this sequence, tk is a factorial number, often written k!. Show that tk=k!=k(k1)(k2)...(3)(2)(1)

12th grade Data  Reiny, Monday, February 23, 2009 at 2:24pm
I don't get it
k!=k(k1)(k2)...(3)(2)(1) by definition,
what's to "show" ?

12th grade Data  Anonymous, Tuesday, March 3, 2009 at 6:17pm
what did they speak
language
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