I forgot most things about factorials but now I have to use them again to simplify expressions while doing convergence tests... What I know is:(adsbygoogle = window.adsbygoogle || []).push({});

[tex] (n +1) ! = (n +1) n! [/tex]

[tex] (2n +1)! = (2n +1) 2n! ? [/tex]

but I don't know how to deal with these:

[tex] (n -1) ! = ?[/tex]

[tex] (2n-1) ! = ?[/tex]

Thanks for any help.

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# Homework Help: Simple factorials!

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