SOLUTION: If nC2=nC3,calculate the value of 6Cn-1

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Question 1106754: If nC2=nC3,calculate the value of 6Cn-1
Answer by stanbon(75887) About Me  (Show Source):
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If nC2=nC3,calculate the value of 6Cn-1
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In general nCr = nC(n-r)
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If nC2 = nC3, 3 = n-2 and n = 5
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Then 6Cn-1 = 6C(5-1) = 6C4 = 6C2 = (6*5)/(1*2) = 15
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Cheers,
Stan H.
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