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Mathematics 15 Online
OpenStudy (anonymous):

WILL BECOME FAN AND MEDAL (n-4)!/(n-6)!

OpenStudy (perl):

simplify?

OpenStudy (anonymous):

yes!

jimthompson5910 (jim_thompson5910):

actually, now that I think it over, it should be this (n-4)! = (n-4)*(n-5)*(n-6)!

OpenStudy (perl):

|dw:1418879385283:dw|

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