Question

How would simplify: n!/((n+1)!+(n-1)!)

Answer 1

Is it:
\[\frac{n!}{(n+1)!+(n-1)!} \]?

Answer 2

Here's a hint. (n+1)! means the product of all numbers from n + 1 to 1.

Answer 3

Yes, do you mean (n+1)!= (n+1)n(n-1)...1?

Answer 4

Yes

Answer 5

Also, \(n!=n*(n-1)*(n-2)*...\)

Answer 6

oh, and i should take out the common (n-1) factor from denominator?

Answer 7

Yes

Answer 8

Well actually the common factor is (n-1)!

Answer 9

ah ok. i got it. Thanks!