What happens with squaring of factorials? (1 Viewer)

[Li0n]

eg
[n!/(n-2)!] ²

or n!²

etc
etc

is this beyond our level?

 

[mervvyn]

you could do the first one, as the n! and (n-2)! cancel to give n(n-1) which you could square easily enough...
in general, i'm guessing it's probably beyond 3U level to use them in any really complex way, although it could be done with a bit of algebra fiddling.

 

[CrashOveride]

n!² just means you can square each term.

So, n!² = n² . (n-1)!² ...........

Try it with like 3!. 3!² = 36. Also 3^2 . 2^2 = 36

 

[Li0n]

ah yeah i noticed for the n! just after i posted.

At least it isn't at our level anyway

Thanks for clearing that up

 

[withoutaface]

[n!/(n-2)!]²=n²(n-1)²