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[Post New]28 Mar 2008 19:31:54 IST
    Subject: Re:Summation of Binomail Coefficients - ques...PLZ HELP
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sandeepramesh (1247)

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Olaaa!! Perrrfect answer. 201  [322 rates]
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note that 20C9 = 20C11 and so on
so the sum is 1/2(20C0 + 20C1........20C20) + 20C10/2
implies its is 2^20/2 + (20C10)/2 = 2^19 + 20C10/2
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