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Mathematics 14 Online
OpenStudy (brinazarski):

How to solve 6P6? I get either undefined or 720...

OpenStudy (anonymous):

720 is the answer

OpenStudy (kinggeorge):

\[6P6={6!\over {(6-6)!}} \]Since \(0!=1\), \(6P6=6!=720\).

OpenStudy (brinazarski):

I was looking at the wrong answer key, I just realized ^^; Thank you! :)

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