Asked by tina
you have a collection of 13 different toppings and you choose at least one. how many different combination are possible assuming no repeat toppings?
Answers
Answered by
Steve
The power set of a set S is the set of all subsets of S. If S has n elements, there are 2^n elements in P(S).
That includes the empty set, which we cannot use (since we must have at least one topping).
So, there are 2^13 - 1 ways to choose some selection of toppings.
That includes the empty set, which we cannot use (since we must have at least one topping).
So, there are 2^13 - 1 ways to choose some selection of toppings.
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