Thread: Maths problem
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Old 11-28-2007, 11:01 PM
jay_shark jay_shark is offline
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Default Re: Maths problem
Has anyone thought of a combinatorial solution to this ?
I have tried and failed .

We wish to prove :

2nCn + 2c1*(2n-2)C(n-1) + 4c2*(2n-4)C(n-2) + ...+ 2nCn = 4^n
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