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If 100C98=nC2, what is n?

2007-10-09 11:53:01 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

2 answers

n = 100
nCa = nC(n-a)

for example
6C4 = (6•5•4•3)/(1•2•3•4) = (6•5)/(1•2) = 6C2

2007-10-09 11:58:21 · answer #1 · answered by Philo 7 · 1⤊ 0⤋

n=4900 because you divide C2 from each side

2007-10-09 11:59:12 · answer #2 · answered by singer4jc108 2 · 0⤊ 1⤋

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