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For a positive integer \(n\), which of the following statements gives the correct definition of \(n!\)?

Answer and explanation

Correct answer: \(n!=n(n-1)(n-2)\cdots 2\cdot1\)

In \(n!\), all positive integers from \(n\) down to 1 are multiplied, so option A is correct. Option B represents addition, not factorial multiplication. Exam tip: identify factorial by the descending product ending in 1.

Related tags

Factorial NotationPermutations And CombinationsFactorial DefinitionClass 11 MathematicsBasic AlgebraMathematicsClass 11 Mcq

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