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What is the value of (\binom{17}{0})?

Answer and explanation

Correct answer: 1

Using the combination formula, \(\binom{n}{r}=\frac{n!}{r!(n-r)!}\). Substituting \(n=17\) and \(r=0\), we get \(\binom{17}{0}=\frac{17!}{0!\,17!}=1\), since \(0!=1\). This means there is exactly one way to choose no objects from 17 objects. Option 0 represents the number of objects selected, not the number of ways. Exam tip: Remember that \(\binom{n}{0}=1\) and \(\binom{n}{n}=1\).

Related tags

CombinationsBinomial CoefficientPermutations And CombinationsClass 11MathematicsClass 11 Mcq

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