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OpenStudy (anonymous):
how do you find the value of P(10,7) ?
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OpenStudy (mertsj):
\[P(n,r)=\frac{n!}{(n-r)!}\]
OpenStudy (anonymous):
can you solve it for me I don't understand "!" thank you.
OpenStudy (mertsj):
5!=5x4x3x2x1
OpenStudy (anonymous):
okay thanks ;)
OpenStudy (mertsj):
yw
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