P&C

(1) Prove that \left C(2n,n \right)/(n+1)=Integer where n\ \epsilon Integer

2 Answers

Hint: \dfrac{^{2n}\mathrm{C}_n}{n+1}=\ ^{2n}\mathrm{C}_n - \ ^{2n}\mathrm{C}_{n-1}

1708

man111 singh ·2009-11-29 22:10:18

Thanks Kaymant sir.

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