Math  /  Discrete

QuestionUse the formula for nCr{ }_{n} \mathrm{C}_{\mathrm{r}} to evaluate the given expression. 18C1{ }_{18} C_{1} 18C1={ }_{18} C_{1}= \square (Type an integer or a simplified fraction.)

Studdy Solution
18C1=18{ }_{18} C_{1} = 18.
There are **18** ways to choose one item from a set of 18!

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