How can I simplify...
n! + (n-1)! / n! - (n-1)!
I don't know what to do. I tried different ways but I can't get anywhere near the answer which is n+1 / n-1
How can I simplify...
n! + (n-1)! / n! - (n-1)!
I don't know what to do. I tried different ways but I can't get anywhere near
the answer which is n+1 / n-1
Thanks.