Count the number of 4-letter subsets

Reference no: EM13858029

Count the number of 4-letter subsets of {a,b,c,d,e}. Start by counting how many more 4-letter words there are: Pick a subset, and try to count how many words you can make with it.

Then, use the multiplication principle to count the number of 4-letter words (total) you can make with the letters {a,b,c,d,e}.

Reference no: EM13858029

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