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anonymous
 one year ago
Three disjoint subsets are to be formed from a collection of 30 items. The first is to have 10 elements, the second is to have 9 elements, and the third is to have 11 elements. In how many ways can this be done?
anonymous
 one year ago
Three disjoint subsets are to be formed from a collection of 30 items. The first is to have 10 elements, the second is to have 9 elements, and the third is to have 11 elements. In how many ways can this be done?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0somehow my answer doesnt match up the answer from the book, strange

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[\left(\begin{matrix}30 \\ 10\end{matrix}\right), \left(\begin{matrix}30 \\ 9\end{matrix}\right),\left(\begin{matrix}30 \\ 11\end{matrix}\right)\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I got 989779465 but the book answer is 5046360719400

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1i think 30C10, then after 10 are chosen its 20C9, etc

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1\[\binom{n}{a}\binom{na}{b}\binom{nab}{c}...\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0k thank you for the clarification

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Three disjoint subsets are to be formed from a collection of 30 items. The first is to have 11 elements, the second is to have 9 elements, and the third is to have 10 elements. In how many ways can this be done? that will give the same answer?
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