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Type the formula for the number of permutations of n things taken r at a time.
p(n,r)=
 one year ago
 one year ago
Type the formula for the number of permutations of n things taken r at a time. p(n,r)=
 one year ago
 one year ago

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FoolForMathBest ResponseYou've already chosen the best response.1
\[ \frac {n!}{(nr)!} \]
 one year ago

ParthKohliBest ResponseYou've already chosen the best response.1
\( \color{Black}{\Rightarrow P(n,r) = \Large {n! \over (n  r)!} }\) lol had to give the answer out here.
 one year ago

ParthKohliBest ResponseYou've already chosen the best response.1
Forgive me, Mr. Fool
 one year ago
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