How do you evaluate the given expression $9!$ ?

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Answer 1 · 2016-12-13T17:24:55

By definition of the factorial:
$9! = 9 xx 8 xx 7 xx 6 xx 5 xx 4 xx 3 xx 2 xx 1$
$\ \ \ = 362880$

How do you evaluate the given expression 9!9!?