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If nC9!=nC8!, find nC17. |
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Answer» n!/(n-9)!9!=n!/(n-8)!8!(n-8)!/(n-9)!=9!/8!(n-8)(n-9)!/(n-9)!=9×8!/8!n-8=9n=17nC17=>17!/(17-17)!17!nC17=1 1 |
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