evaluate the combination:

there is a set of parentheses, 15 on top of a 15- it would look like this, just one set of parentheses


i am just stuck

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asked by Dana
  1. This is the notation used for combinations. In particular, its top-choose-bottom. In your example, you have 15 items (top) and you want to determine the number of ways of picking 15 of them (bottom).

    BTW, the answer in this example is 1.

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