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(a) Find the number of ways that Magnus can give out 12 identical stickers to 12 of his friends. (Not everyone has to get a sticker.)

 

(b) Find the number of ways that Magnus can give out 12 identical stickers to 12 of his friends, if every friend gets at least one sticker.

 Oct 9, 2023
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For the second part, it's 12!, which is 12*11*10*...*2*1, which is 479,001,600

 Oct 12, 2023

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