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I know that I can useSarrusbut I think I will get a complicated equation. Is there any other ways to solve this ?

thanks

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- Mar 24th 2008, 08:46 AM #1

- Mar 24th 2008, 08:56 AM #2
There very well may be a sneaky, 'trick' answer to do this (like making use of the fact that det(AB)=det(A)det(B), but I don't see what two matrices would multiply to give you this)

If you're stuck using Sarrus, at the very least make the substitution x=n+2. That will balance out your terms a bit more, and at least give you some difference of squares while you're multiplying it all out.

- Mar 24th 2008, 09:16 AM #3
## use row and column operations