Podoblasť: KombinatorikaČasť: BProject ID: 9000140503Accepted: 1Clonable: 0Easy: 0Zjednodušte pre \(n\in \mathbb{N}\). \[ \frac{(n + 1)! + (n - 1)!} {n!} \]\(\frac{n^{2}+n+1} {n} \)\(2\)\(n^{2} - 1\)\(\frac{n^{2}-n+1} {n} \)
