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Mathematics 6 Online
OpenStudy (mew55):

how do i expand (n+3)! ? is it (n+3),(n+2),(n+1),(n) right?

hartnn (hartnn):

yes, u just missed ! sign in the end (n+3)! = (n+3)(n+2)(n+1)n!

OpenStudy (mew55):

oh no wonder y i was missing something XD

OpenStudy (turingtest):

yes, but you could of course continue this down to 1 though, since \[n!=n(n-1)(n-2)(n-3)...\cdot2\cdot1\]

OpenStudy (mew55):

okay. thank u :)

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