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OpenStudy (anonymous):
Can someone help me with the formula for P^c(n,r)=
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OpenStudy (anonymous):
\[\large C(n,r)={}_{n}C_{r}=\frac{n!}{r!(n-r)!}\] I'm not sure what you mean by the \(P\). Is that \[\large P^{C(n,r)}~~?\]
OpenStudy (anonymous):
thank you
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