Respuesta :

'n!' is a factorial.

A factorial is equal to [tex]n*(n-1)*(n-2)*(n-3)*... * 2 * 1[/tex].

Since in this case n = 6, then:

      [tex]6! = 6 * 5 * 4 * 3 * 2 *1 = 720[/tex]

Thus 6! = 720.

Hope it helps!

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