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Prove: C(2n,n) = C(n,0)^2 + C(n,1)^2 +...+ C(n,n)^2 | Combinatorics

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We use the committee model to prove this combinatorial identity. There are n men and n women. We want to select a n-person committee. Use this model, we can easily to prove this identity.
Prove: C(2n,n) = C(n,0)^2 + C(n,1)^2 +...+ C(n,n)^2 | Combinatorics
Prove nC0+nC1+nC2+.....+nCn=2^n | Combination | Statistics Tutor
Combinatorial Proof about C(2n,n)
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∑ Equation Proof using Binomial Theorem problem ! ! ! ! !
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11.h) Prove that: C0C1+C1C2+C2C3+...+Cn-1Cn=(2n)!/(n+1)!(n-1)! If (1+x)ⁿ=C0+C1x+C2x²+...+Cnxⁿ NEB 12...
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